CATALOG OF SEISMOGRAM ARCHIVES

Key to Geophysical Records
Documentation No. 9
Revised

U.S. Department of Commerce
National Oceanic and Atmospheric Administration
National Environmental Satellite, Data, and Information Service
National Geophysical Data Center
Boulder, Colorado
KGRD CATALOG SERIES

Listed below are catalogs published in the Key to Geophysical Records Documentation (KGRD) series. Those without an asterisk (*) may be obtained from the National Geophysical Data Center, NOAA, Code E/GC1, 325 Broadway, Boulder, Colorado, USA, 80303; if preceded by an asterisk, from the National Technical Information Service, U.S. Department of Commerce, Springfield, Virginia, USA, 22161.

KGRD No. 1, Marine Geophysical Data Catalog (superseded by KGRD No. 4).

*KGRD No. 2, Catalog of Strong-Motion Seismograph Stations and Records (NTIS No. COM-74-10714).

KGRD No. 3, Catalog of Earthquake Photographs (superseded by KGRD No. 7).

KGRD No. 4, Marine Geophysical Data Catalog--1975 (superseded by KGRD No. 11).

*KGRD No. 5, Earthquake Data File Summary (NTIS No. PB-265445).

*KGRD No. 6, Bibliography and Index to Literature on Manganese Nodules (1874-1975) (NTIS No. PB-257218).

KGRD No. 7, Catalog of Earthquake Photographs (superseded by KGRD No. 20).

*KGRD No. 8, Catalog of Digital Bathymetric Data for the United States Coastal Regions (NTIS No. PB81 133258).

KGRD No. 9, Catalog of Seismogram Archives (Revised).

KGRD No. 10, The Marine Geophysical Data Exchange Format--"MGD77".

KGRD No. 11, Summary of Digital Marine Geophysical Data Holdings (Bathymetric, Magnetic, and Gravimetric Data).

KGRD No. 12, Thermal Springs List for the United States.

KGRD No. 13, Catalog of Tsunami Photographs (superseded by KGRD No. 20).

KGRD No. 14, Marine Geology and Geophysics Data Services and Publications.

KGRD No. 15, Earthquake Data Services and Publications (including Tsunami).

KGRD No. 16, Catalog of Geological and Geophysical Data for the National Petroleum Reserve in Alaska.

KGRD No. 17, Terrestrial Geophysics Data Services and Publications.

KGRD No. 18, U.S. Land Gravity.

KGRD No. 19, Summary of Earthquake Intensity File.

KGRD No. 20, Natural Hazards Photograph Catalog.
U.S. DEPARTMENT OF COMMERCE
Malcolm Baldrige, Secretary

NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION
John V. Byrne, Administrator

NATIONAL ENVIRONMENTAL SATELLITE, DATA, AND INFORMATION SERVICE
John H. McElroy, Assistant Administrator

CATALOG OF SEISMOGRAM ARCHIVES

Key to Geophysical Records Documentation No. 9
Revised

By Dale P. Glover and Wilbur A. Rinehart

National Geophysical Data Center
Boulder, Colorado
1983
Figure 1
1983 SEISMOGRAPH STATIONS WHOSE RECORDS ARE AVAILABLE FROM
National Geophysical Data Center
National Oceanic and Atmospheric Administration
CONTENTS

Page

Introduction..................................................................................................................... 1

Seismograph Station Networks.......................................................................................... 1

    Worldwide Standard Seismograph Network (WWSSN)............................................. 1
    Canadian Seismograph Network (CSN)....................................................................... 2
    People's Republic of China Network (PRC)................................................................. 2
    Nonstandard Seismograph Stations............................................................................. 2
    Global Digital Seismograph Network (GDSN).............................................................. 5

        High-Gain Long-Period Network (HGLP)................................................................. 5
        Seismic Research Observatory Network (SRO)......................................................... 5
        Abbreviated Seismic Research Observatory Network (ASRO)............................ 5
        Digital Worldwide Standard Seismograph Network (DWWSSN)......................... 5
        Regional Seismic Test Network (RSTN)................................................................... 6
        Miscellaneous........................................................................................................... 6

Seismogram Services....................................................................................................... 6

    Analog Data from Global Networks............................................................................. 6
    Digital Data from Global Networks............................................................................... 7
    Digital Data from International Deployment of Accelerometers Project... 7
    Seismograms from International Data Exchange (IDE)............................................. 7
    Historical Seismograms............................................................................................... 7

Information for Ordering.................................................................................................. 8

Bibliography..................................................................................................................... 9

List of Figures

Figure

1 World map showing location of seismograph stations whose records are available from National Geophysical Data Center......................... ii

2 Representative response curves for Seismic Research Observatory Network, Worldwide Standard Seismograph Network, and High-Gain Long-Period Network................................................................. 3
3 Representative response curves for Canadian Seismograph Network........ 4
List of Tables

<table>
  <tr>
    <th>Table</th>
    <th>Page</th>
  </tr>
  <tr>
    <td>1 Stations in Worldwide Standard Seismograph Network</td>
    <td>10</td>
  </tr>
  <tr>
    <td>2 Stations in Canadian Seismograph Network</td>
    <td>12</td>
  </tr>
  <tr>
    <td>3 Stations in People's Republic of China Network</td>
    <td>13</td>
  </tr>
  <tr>
    <td>4 Nonstandard seismograph stations</td>
    <td>13</td>
  </tr>
  <tr>
    <td>5 Stations in Global Digital Seismograph Network</td>
    <td>14</td>
  </tr>
  <tr>
    <td>6 Inventory of analog seismograms</td>
    <td>15</td>
  </tr>
  <tr>
    <td>7 International Data Exchange Events</td>
    <td>37</td>
  </tr>
  <tr>
    <td>8 Stations in International Deployment of Accelerometers Project</td>
    <td>38</td>
  </tr>
  <tr>
    <td>9 Stations for which historical seismograms are available</td>
    <td>39</td>
  </tr>
</table>
CATALOG OF SEISMOGRAM ARCHIVES

By Dale P. Glover and Wilbur A. Rinehart

INTRODUCTION

Seismograms provide the seismologist the most efficient means of "looking" into the most inaccessible regions of the Earth--the Earth's interior. Geophysical studies based on seismograms have drawn a vivid picture of a planet that has a solid inner core about 1250-km radius, a fluid outer core about 3470-km radius, a mantle about 2900 km thick, and a crust about 30 km thick. Other studies have pinpointed areas of high earthquake risk, where the buildings in which we live and work must be constructed to resist damaging earthquake motion. Further, the methods devised to describe Earth's internal structure have been used by many others to search for rich deposits of oil and minerals beneath its surface and its oceans.

The National Geophysical Data Center (NGDC) is the Governmental agency that collects and disseminates to researchers the seismograms written at seismic stations throughout the world. Analog records received from these stations are copied onto microfilm using high-resolution cameras, which accurately preserve the scale of the records. NGDC also collects digital data from many stations worldwide. Each year more than 300,000 analog seismograms from about 150 earthquake-monitoring stations worldwide are processed and archived, adding to a file that now contains more than 5 million records.

This catalog describes the seismograph networks and the instruments that produce the seismograms in NGDC's archive; it also lists the recording stations and dates for which seismograms are available. The archived records include those from the Worldwide Standard Seismograph Network (WWSSN), the Global Digital Seismograph Network (GDSN), the Canadian Seismograph Network (CSN), and the People's Republic of China Network (PRC). The tabular lists in the catalog provide a quick and comprehensive review of the records now available as well as the names of the stations that produced them.

Figure 1 shows the locations of all seismograph stations that now furnish analog and digital seismograms to NGDC. The original paper seismograms from stations operated by the National Oceanic and Atmospheric Administration (NOAA) and its predecessors prior to 1973 (U.S. Coast and Geodetic Survey and Environmental Science Services Administration) are held by NGDC. The original paper records after 1973 are held by the U.S. Geological Survey (USGS).

SEISMOGRAPH STATION NETWORKS

Worldwide Standard Seismograph Network (WWSSN)

This network, which was established in the early 1960s, consists of about 107 continuously recording stations distributed worldwide. Instrumentation at
each site consists of six seismometers--one vertical and two orthogonally oriented horizontals to monitor short-period spectra and a similar instrumentation to monitor long-period spectra. The seismometers are short-period Benioffs and long-period Sprengnethers or Press-Ewings. This network is managed by the USGS.

The seismometers are coupled to galvanometers to enable direct photographic recording on photo-sensitive paper. The free periods of the seismometers are about 1 second for the short-period instruments and 15 to 30 seconds for the long-period instruments. Galvanometers have periods of about 0.75 and 100 seconds for the short- and long-period instruments, respectively. Overall response curves are shown in figure 2. A crystal clock, accurate to one part in \(10^7\), controls the recording drum rate and the time-marking device. A simple calibration pulse is impressed on each record to enable the magnification of each instrument to be determined. The size of the original seismograms is 29 by 91 cm (11.5 by 36 in.). Table 1 gives a list of the stations, including their elevations and geographic locations, and figure 1 shows their locations.

Canadian Seismograph Network (CSN)

This network contains 28 standard stations (see table 2 and fig. 1), each of which produces six seismograms daily. The stations have three orthogonal short- and long-period seismographs, each producing a photographic record. Most stations have Willmore short-period seismometers (1-second period) coupled to Tinsley galvanometers (0.25-second period), and Columbia long-period seismometers (15-second period) coupled to Lehner-Griffith galvanometers (90-second period). A representative response curve is shown in figure 3.

Microfilm copies of Canadian seismograms (from 1962) are available from NGDC. All other records, including magnetic tapes and seismograms, are available from: Head, Canadian Seismograph Network, Division of Seismology and Geothermal Studies, Earth Physics Branch, Department of Energy, Mines and Resources, Ottawa, Canada K1A 0Y3.

People's Republic of China Network (PRC)

The routine exchange of seismograms with People's Republic of China began during the last part of 1980 when NGDC installed a 70-mm panoramic camera at the PRC State Seismological Bureau. Seismograms from 1979 to the present are available from the 17-station National Network.

Instruments in the network vary from station to station, but each station daily produces at least one record that contains one to three components. Table 3 gives a list of the stations, and figure 1 shows their locations.

Nonstandard Seismograph Stations

In addition to the networks of seismographs described previously, many individual stations are operated by several institutions and organizations throughout the world. Some of these stations exist in networks that have standard instrumentation; many others, however, are independent stations that have several types of instrumentation. NGDC has copies of seismograms produced by a
Figure 2. Representative response curves: A, short-period response curve, Seismic Research Observatory system; B, long-period response curve, Seismic Research Observatory system; C, overall response curves, Worldwide Standard Seismograph Network; D, standardized response curve, High-Gain Long-Period system.
Figure 3. Representative response curves for Canadian Seismograph Network
few of these stations. Table 4 lists those stations that now contribute seismograms, and figure 1 shows their locations.

Global Digital Seismograph Network (GDSN)

NGDC archives and disseminates analog and digital data from the GDSN, which includes the High-Gain Long Period Network (HGLP), the Seismic Research Observatory Network (SRO), the Abbreviated Seismic Research Observatory Network (ASRO—Modified HGLP), the Digital Worldwide Standard Seismograph Network (DWWSSN), and the Regional Seismic Test Network (RSTN). These records are available as data tapes and analog copies, as described below. A list of the GDSN stations is given in table 5, and their locations are shown in figure 1. This network is managed by the USGS.

High-Gain Long-Period Network (HGLP)

Beginning in 1969, a network of long-period seismographs (HGLP) was installed in selected areas around the world. The HGLP program began under the direction of the Lamont-Doherty Geological Observatory of Columbia University, and in 1971 came under the direction of the U.S. Geological Survey (USGS) Albuquerque Seismological Center. Instrumentation consisted of three Teledyne-Geotech Models S-11 and S-12 seismometers, which recorded both on paper and on magnetic tape.

The instruments were encased in environmentally sealed containers, which enabled them to operate at higher magnifications than those of other long-period seismographs. The stations produced six analog records daily and one magnetic tape about every 2 weeks. Most, if not all, of the HGLP stations either are now closed or have been converted to other types of stations (see table 5).

Seismic Research Observatory Network (SRO)

SRO stations were first established in the mid-1970s by the USGS. Signals from a single, three-component Teledyne-Geotech Model 36000 seismometer, installed in a borehole, are filtered to produce one short- and three long-period analog records per day and one magnetic tape about every 2 weeks. See table 5 for a current list of stations.

Abbreviated Seismic Research Observatory Network (ASRO)

In the mid-1970s, the USGS modified some HGLP stations with solid-state components and added a short-period vertical component and an abbreviated version of the SRO digital recording system. These stations produce seven analog records per day and a magnetic tape about every 2 weeks. Table 5 lists ASRO stations now in operation.

Digital Worldwide Standard Seismograph Network (DWWSSN)

The DWWSSN, which was established by the USGS in the early 1980s, uses microprocessor technology. Most of the stations are former WWSSN stations, but
all have digital recording capability. Table 5 lists stations in the digital recording network.

Digital tapes derived from SRO, ASRO, and HGLP stations before January 1, 1980, contain data from three long-period channels sampled at the rate of one channel per second. Vertical, north-south, and east-west long-period data words are multiplexed into each data record in that order. Short-period vertical data bursts from the event detector at SRO and ASRO stations are recorded as separate data records that appear at random intervals on the tape, but are differentiated by the sample rate. The digital recording system, like that used in the SRO project, provides 66 dB of resolution plus 60 dB of automatic gain control for a total of 126 dB of recording range--over six orders of magnitude.

Regional Seismic Test Network (RSTN)

The RSTN system was developed and operated by Sandia Laboratories, Albuquerque, New Mexico, as an experiment in gathering high-quality seismic data over a broad range of frequencies. The five unmanned stations (see table 5) use Teledyne-Geotech Model KS 36000-04 and Model S-750 seismometers mounted in boreholes. Short-period, mid-period, and long-period signals are transmitted via geosynchronous satellite to a central control site in Albuquerque where they are recorded continuously.

Miscellaneous

Digital data from one station in the Eastern Canada Telemetered Network (ECTN), Glen Almond, now are being merged with data from other GDSN stations. The station uses a Teledyne-Geotech Model 36000 triaxial seismometer installed in a 100-m borehole. Data are transmitted by radio telemetry to Ottawa where they are recorded on magnetic tape. For information concerning Glen Almond and the ECTN, please contact the Head, Canadian Seismograph Network, Division of Seismology and Geothermal Studies, Earth Physics Branch, Department of Energy, Mines and Resources, Ottawa, Canada, K1A OY3.

SEISMOGRAM SERVICES

Analog Data from Global Networks

Seismograms from global networks are copied on microfilm using special high-resolution cameras, which accurately preserve the scale of the records. WWSSN and CSN stations produce daily three components each of short- and long-period data; HGLP stations also produce three components each of long-period data recorded at two different gain levels; SRO stations produce three components of long-period data and one vertical component of short-period data; and ASRO stations produce six components of long-period and one component of short-period data. A list of analog seismograms available to date is given in table 6.

Formats for analog data are: CSN seismograms, 35-mm reels; PRC, 70-mm film; WWSSN, HGLP, SRO, and ASRO, microfiche only for data recorded after June 30, 1978 and 70-mm and 35-mm film prior to that date. All 70-mm film copies are provided on a 105 X 148-mm fiche, one record per fiche.
Digital Data from Global Networks

Digital data are available as network-day tapes from the GDSN. Commonly, 10 or more stations submit data which usually consist of one or two tapes for each network-day. Tape copies are available in the original format on 9-track tapes at either 800 or 1600 bpi. SRO tapes (pre-1980) have binary headers and gain-ranged binary data. Network-day tapes (post-1980) have ASCII logs, binary headers, and gain-range binary data. The digital values in a gain-range binary format have a 4-bit characteristic and a 12-bit, 2's compliment mantissa. The USGS collects the digital records and furnishes them to NGDC for distribution.

Digital data are available from March 1, 1977; data covering time periods earlier than March 1977 are available for the HGLP and SRO stations from: Seismic Data Analysis Center, 312 Montgomery Street, Alexandria, VA 22714, USA.

Digital Data from International Deployment of Accelerometers Project

Digital data from the International Deployment of Accelerometers (IDA) Project are now available from NGDC. The installation of a new seismic network to measure very long period (VLP) ground motions--those with periods of more than 40 seconds, such as surface waves and free oscillations caused by earthquakes and earth tides--began in 1975; the network now contains 21 stations (table 8).

The instrument used at each station is a LaCoste-Romberg gravimeter, which has been provided with electronic sensing and feedback to give a stable broadband response. Early in the operation of the network, two channels (designated Tide and Mode) of output were recorded digitally at 20-second intervals. In 1980, the Tide channel was discontinued at most stations and the sampling rate of the Mode channel was increased to 10 seconds. The 10-second sampling rate enables the IDA records to be used for studies of body waves, in addition to studies of very long period surface waves.

Data are available from January 1975 through November 1980 (see table 8). Requests for information on formats and costs should be sent to NGDC.

Seismograms from International Data Exchange (IDE)

Seismograms for earthquakes of magnitude \( \geq 7.5 \) as well as for other events of unusual interest (table 7) are available as a package from World Data Center A (collocated with NGDC) from seismograph stations that participate in this international data-exchange program. World Data Center A conducts this program under the provisions of the "Guide to International Data Exchange Through the World Data Centres" (International Council of Scientific Unions). Although most of these records are available as microfiche and 70-mm film chips, some records may be furnished on 16-mm or 35-mm microfilm. Microfilm formats will vary, depending on the formats of the original seismograms; therefore, an IDE package may consist of microfiche, 70-mm chips, and 16-mm or 35-mm rolls.

Historical Seismograms

The film archive of historical seismograms contains over 500,000 records for selected earthquakes since 1899. The purpose of the historical seismogram
filming project is to preserve and archive historically important seismograms for both present and future researchers. NGDC has film copies of all available seismograms from nine stations (including stations in Japan, Puerto Rico, and United States); NGDC also has film copies of many selected events from nine additional U.S. stations (see table 9). Historical seismograms, which are stored on 16-mm and 35-mm film, are available only by the reel. By prior arrangement, researchers may review at NGDC facilities the original seismograms from many additional stations.

As part of the historical seismogram filming project, more than 340,000 pages from 450 seismograph station bulletins have been filmed from the collections at Saint Louis University and at NGDC (includes bulletins published by U.S. Coast and Geodetic Survey). Although the present collection still is incomplete, it represents a significant part of the seismological bulletins for the period 1900-65. The station bulletins are available on 16-mm microfilm and microfiche.

INFORMATION FOR ORDERING

The NGDC seismogram film inventory is listed in table 6. Please use this list when ordering analog records. Seismologists from the United States and abroad are welcome to visit NGDC, and, with prior arrangement, may use the film chip file and other facilities without charge.

Both analog and digital records are available in the formats described in the section "Seismogram Services." Note that prepayment is required on all orders. When ordering analog records, refer to the price table that has been inserted at the back of this publication. Requests for data, or inquiries about availability of data, should be addressed to:

National Geophysical Data Center
NOAA, Code E/GC1
325 Broadway
Boulder, CO 80303

Direct telephone inquiries to:

Commercial:   (303) 497-6513 (analog data)
              (303) 497-6591 (digital data)
FTS:         320-6513 (analog data)
              320-6591 (digital data)
Telex:       45897 Solterwarn
BIBLIOGRAPHY

Lander, James F. (Editor), June 1981: "Chapter 5, Seismology," in Emptoz, Gerard (Editor), Codata Directory of Data Sources for Science and Technology, International Council of Scientific Unions, Committee on Data for Science and Technology, Pergamon Press, No. 42, 54 p.

Engdahl, E.R., J. Peterson, and N.A. Orsini, 1982: "Global Digital Networks--Current Status and Future Directions," Bull. Seis. Soc. Am., v. 72, Part B, No. 6, p. S243.

Ganse, Robert and Charles R. Hutt, 1982: Directory of World Digital Seismic Stations, Report SE-32, World Data Center A for Solid Earth Geophysics, Boulder, Colo., 439 p.

Glover, Dale P. and H. Meyers, 1982: Historical Seismogram Filming Project: Fourth Progress Report, Report SE-33, World Data Center A for Solid Earth Geophysics, Boulder, Colo., 55 p.

Halliday, R.J., Department of Energy, Mines and Resources, Ottawa, Canada, personal communication, 1983.

Hoffman, John P., 1980: "The Global Digital Seismograph Network-Day Tape," U.S. Geological Survey Open-File Report 80-289, 37 p.

International Council of Scientific Unions, 1979: Fourth Consolidated Guide to International Data Exchange Through the World Data Centres, ICSU Panel on World Data Centres, Washington, D.C., 113 p.

Morris, L., D. Glover, and S. Smookler, 1977: Catalog of Seismograms and Strong-Motion Records, Report SE-6, World Data Center A for Solid Earth Geophysics, Boulder, Colo., 72 p.

Poppe, Barbara B., 1980: Directory of World Seismograph Stations, Volume 1, The Americas, Part 1, United States, Canada, Bermuda, Report SE-35, World Data Center A for Solid Earth Geophysics, Boulder, Colo., 466 p.

Poppe, B.B., D. A. Naab, and J.S. Derr, 1978: "Seismograph Station Codes and Characteristics," U. S. Geological Survey Circular 791, 171 p.

Powell, Tom and Donald Fries, 1966: Handbook: World Wide Standard Seismograph Network, The University of Michigan, Ann Arbor, Mich.

Shannon, W.E., R.J. Halliday, P.S. Munro, and D.R.J. Schiemann, 1982: Canadian Seismograph Operations-1981, Seismological Series Number 88, Ottawa, Canada, 109 p.

U.S. Department of the Interior, Geological Survey, Albuquerque Seismological Laboratory, Albuquerque, N. Mex., personal communication, 1976, 1983.
Table 1.--Stations in Worldwide Standard Seismograph Network

<table>
  <tr>
    <th>Station code</th>
    <th>Station</th>
    <th>Latitude</th>
    <th>Longitude</th>
    <th>Elev.</th>
    <th>Date opened yr mo da</th>
    <th>Date closed yr mo da</th>
  </tr>
  <tr><td>AAE</td><td>Addis Ababa, Ethiopia</td><td>90145.0N</td><td>384556.0E</td><td>2442</td><td>62 05 14</td><td></td></tr>
  <tr><td>AAM</td><td>Ann Arbor, Michigan, USA</td><td>421759.0N</td><td>833922.0W</td><td>249</td><td>62 10 08</td><td></td></tr>
  <tr><td>ADE</td><td>Adelaide, Australia</td><td>345801.0S</td><td>1384232.0E</td><td>655</td><td>62 04 01</td><td></td></tr>
  <tr><td>AFI</td><td>Afiamaulu, Western Samoa</td><td>135433.6S</td><td>1714638.1W</td><td>706</td><td>62 09 28</td><td></td></tr>
  <tr><td>AKU</td><td>Akureyri, Iceland</td><td>654112.0N</td><td>180624.0W</td><td>24</td><td>64 07 23</td><td></td></tr>
  <tr><td>ALQ</td><td>Albuquerque, New Mexico</td><td>345633.0N</td><td>1062727.0W</td><td>1849</td><td>61 10 03</td><td></td></tr>
  <tr><td>ANP</td><td>Anpu, Taiwan</td><td>251100.0N</td><td>1213100.0E</td><td>827</td><td>63 03 04</td><td></td></tr>
  <tr><td>ANT</td><td>Antofagasta, Chile</td><td>234218.0S</td><td>702455.0W</td><td>80</td><td>62 12 04</td><td></td></tr>
  <tr><td>AQU</td><td>Aquila, Italy</td><td>422114.0N</td><td>132411.0E</td><td>720</td><td>62 04 02</td><td></td></tr>
  <tr><td>ARE</td><td>Arequipa, Peru</td><td>162743.5S</td><td>712928.6W</td><td>2452</td><td>62 01 18</td><td></td></tr>
  <tr><td>ATL</td><td>Atlanta, Georgia, USA</td><td>332600.0N</td><td>842015.0W</td><td>272</td><td>63 06 14</td><td></td></tr>
  <tr><td>ATU</td><td>Athens University, Greece</td><td>375820.0N</td><td>234300.0E</td><td>95</td><td>62 03 16</td><td></td></tr>
  <tr><td>BAG</td><td>Baguio City, Philippine Islands</td><td>162439.0N</td><td>1203447.0E</td><td>1507</td><td>62 03 05</td><td></td></tr>
  <tr><td>BDF</td><td>Brasilia, Brazil</td><td>153949.8S</td><td>475412.0W</td><td>1260</td><td>73 09 01</td><td></td></tr>
  <tr><td>BEC</td><td>Bermuda (Columbia), Bermuda</td><td>322246.0N</td><td>644052.0W</td><td>41</td><td>61 12 28</td><td></td></tr>
  <tr><td>BHP</td><td>Balboa Heights, Canal Zone</td><td>85739.0N</td><td>793329.0W</td><td>36</td><td>61 12 09</td><td>77 02 28</td></tr>
  <tr><td>BKS</td><td>Berkeley (Byerly), California, USA</td><td>375236.0N</td><td>1221406.0W</td><td>276</td><td>62 05 28</td><td></td></tr>
  <tr><td>BLA</td><td>Blacksburg, Virginia, USA</td><td>371240.7N</td><td>802515.6W</td><td>634</td><td>62 08 26</td><td></td></tr>
  <tr><td>BOG</td><td>Bogota, Colombia</td><td>43723.0N</td><td>740354.0W</td><td>2658</td><td>62 04 09</td><td></td></tr>
  <tr><td>BOZ</td><td>Bozeman, Montana, USA</td><td>453600.0N</td><td>1113800.0W</td><td>1575</td><td>63 08 29</td><td>68 02 29</td></tr>
  <tr><td>BUL</td><td>Bulawayo, Zimbabwe</td><td>200836.0S</td><td>283648.0E</td><td>1341</td><td>63 01 10</td><td></td></tr>
  <tr><td>CAI</td><td>Caico, Brazil</td><td>63133.6S</td><td>370816.8W</td><td>19</td><td>83 05 31</td><td></td></tr>
  <tr><td>CAR</td><td>Caracas, Venezuela</td><td>103024.0N</td><td>665539.5W</td><td>1035</td><td>62 04 16</td><td></td></tr>
  <tr><td>CCG</td><td>Camp Century, Greenland</td><td>771000.0N</td><td>610800.0W</td><td>1920</td><td>62 12 08</td><td>63 02 25</td></tr>
  <tr><td>CHG</td><td>Chiang Mai, Thailand</td><td>184724.0N</td><td>985837.0E</td><td>416</td><td>63 03 02</td><td></td></tr>
  <tr><td>CMC</td><td>Copper Mine, NWT, Canada</td><td>675000.0N</td><td>1150500.0W</td><td>31</td><td>63 04 07</td><td>69 03 31</td></tr>
  <tr><td>COL</td><td>College, Alaska, USA</td><td>645400.0N</td><td>1474736.0W</td><td>320</td><td>64 01 01</td><td></td></tr>
  <tr><td>COP</td><td>Copenhagen, Denmark</td><td>554100.0N</td><td>122600.0E</td><td>13</td><td>62 01 04</td><td></td></tr>
  <tr><td>COR</td><td>Corvallis, Oregon, USA</td><td>443508.6N</td><td>1231811.5W</td><td>121</td><td>62 07 16</td><td></td></tr>
  <tr><td>CTA</td><td>Charters Towers, Australia</td><td>200518.0S</td><td>1461516.0E</td><td>357</td><td>63 02 20</td><td></td></tr>
  <tr><td>DAG</td><td>Danmarkshavn, Greenland</td><td>764612.0N</td><td>184612.0W</td><td>0</td><td>72 09 01</td><td></td></tr>
  <tr><td>DAL</td><td>Dallas, Texas, USA</td><td>325046.0N</td><td>964702.0W</td><td>187</td><td>61 09 18</td><td></td></tr>
  <tr><td>DAV</td><td>Davao, Philippine Islands</td><td>70516.0N</td><td>1253429.0E</td><td>85</td><td>64 09 01</td><td></td></tr>
  <tr><td>DUG</td><td>Dugway, Utah, USA</td><td>401142.0N</td><td>1124848.0W</td><td>1477</td><td>62 05 02</td><td></td></tr>
  <tr><td>EIL</td><td>Eilat, Israel</td><td>293300.0N</td><td>345700.0E</td><td>200</td><td>69 01 01</td><td>76 12 31</td></tr>
  <tr><td>EPT</td><td>El Paso, Texas, USA</td><td>314618.0N</td><td>1063021.0W</td><td>1186</td><td>76 06 06</td><td></td></tr>
  <tr><td>ESK</td><td>Eskdalemuir, Scotland</td><td>551900.0N</td><td>31218.0W</td><td>242</td><td>64 03 16</td><td></td></tr>
  <tr><td>FLO</td><td>Florissant, Missouri, USA</td><td>384806.0N</td><td>902212.0W</td><td>160</td><td>61 09 07</td><td>71 08 31</td></tr>
  <tr><td>FVM</td><td>French Village, Missouri, USA</td><td>375902.4N</td><td>902533.6W</td><td>310</td><td>74 05 10</td><td></td></tr>
  <tr><td>GDH</td><td>Godhavn, Greenland</td><td>691500.0N</td><td>533200.0W</td><td>23</td><td>62 11 15</td><td></td></tr>
  <tr><td>GEO</td><td>Georgetown, Dist. of Columbia, USA</td><td>385400.0N</td><td>770400.0W</td><td>29</td><td>61 11 05</td><td></td></tr>
  <tr><td>GIE</td><td>Galapagos Islands</td><td>4400.0S</td><td>901800.0W</td><td>30</td><td>64 05 14</td><td></td></tr>
  <tr><td>GOL</td><td>Golden (Bergen Pk.), Colorado, USA</td><td>394201.0N</td><td>1052216.0W</td><td>2359</td><td>61 12 08</td><td></td></tr>
  <tr><td>GRM</td><td>Grahamstown, South Africa</td><td>331848.0S</td><td>263424.0E</td><td>610</td><td>67 10 22</td><td></td></tr>
  <tr><td>GSC</td><td>Goldstone, California, USA</td><td>351806.0N</td><td>1164816.6W</td><td>990</td><td>63 02 15</td><td></td></tr>
  <tr><td>GUA</td><td>Guam (Santa Rosa), Mariana Is.</td><td>133218.0N</td><td>1445442.0E</td><td>230</td><td>63 04 07</td><td></td></tr>
  <tr><td>HKC</td><td>Hong Kong, British Crown Colony</td><td>221812.8N</td><td>1141018.8E</td><td>27</td><td>63 05 08</td><td></td></tr>
  <tr><td>HLW</td><td>Helwan, Egypt</td><td>295130.0N</td><td>312030.0E</td><td>116</td><td>62 05 15</td><td></td></tr>
  <tr><td>HNR</td><td>Honiara, Solomon Islands</td><td>92555.9S</td><td>1595649.6E</td><td>72</td><td>62 01 18</td><td></td></tr>
  <tr><td>HON</td><td>Honolulu, Hawaii, USA</td><td>211917.8N</td><td>1580029.5W</td><td>2</td><td>82 12 01</td><td></td></tr>
  <tr><td>HOW</td><td>Howrah, India</td><td>222500.0N</td><td>881833.0E</td><td>3</td><td>63 11 04</td><td></td></tr>
  <tr><td>IST</td><td>Istanbul, Turkey</td><td>410244.0N</td><td>285945.0E</td><td>50</td><td>62 01 10</td><td></td></tr>
  <tr><td>JCT</td><td>Junction City, Texas, USA</td><td>302846.0N</td><td>994808.0W</td><td>591</td><td>65 03 07</td><td></td></tr>
  <tr><td>JER</td><td>Jerusalem, Israel</td><td>314619.0N</td><td>351150.0E</td><td>770</td><td>64 08 01</td><td></td></tr>
  <tr><td>KBL</td><td>Kabul, Afghanistan</td><td>343227.0N</td><td>690235.4E</td><td>1920</td><td>68 06 08</td><td></td></tr>
  <tr><td>KBS</td><td>Kingsbay, Spitsbergen</td><td>785503.0N</td><td>115526.0E</td><td>46</td><td>67 10 04</td><td></td></tr>
  <tr><td>KEV</td><td>Kevo, Finland</td><td>694519.0N</td><td>270024.0E</td><td>80</td><td>62 09 01</td><td></td></tr>
  <tr><td>KIP</td><td>Kipapa, Hawaii, USA</td><td>212524.0N</td><td>1580054.0W</td><td>70</td><td>62 12 11</td><td>82 08 15</td></tr>
  <tr><td>KOD</td><td>Kodaikanal, India</td><td>101400.0N</td><td>772800.0E</td><td>2345</td><td>64 11 01</td><td></td></tr>
</table>
Table 1.--Stations in Worldwide Standard Seismograph Network (Continued)

<html>
<table>
<tr>
<th>Station code</th>
<th>Station</th>
<th>Latitude</th>
<th>Longitude</th>
<th>Elev. (m)</th>
<th>Date opened</th>
<th>Date closed</th>
</tr>
<tr><td>KON</td><td>Kongsberg, Norway</td><td>593856.7N</td><td>93553.6E</td><td>216</td><td>62 05 26</td><td></td></tr>
<tr><td>KRK</td><td>Kirkenes, Norway</td><td>694277.0N</td><td>300345.0E</td><td>25</td><td>67 04 01</td><td>69 05 10</td></tr>
<tr><td>KTG</td><td>Kap Tobin, Greenland</td><td>702500.0N</td><td>215900.0W</td><td>6</td><td>63 08 12</td><td>80 08 31</td></tr>
<tr><td>LAH</td><td>Lahore, Pakistan</td><td>313300.0N</td><td>742000.0E</td><td>210</td><td>62 08 12</td><td>68 12 31</td></tr>
<tr><td>LEM</td><td>Lembang, Indonesia</td><td>65000.0S</td><td>1073700.0E</td><td>1252</td><td>64 10 16</td><td></td></tr>
<tr><td>LON</td><td>Longmire, Washington, USA</td><td>464500.0N</td><td>1214836.0W</td><td>854</td><td>62 07 27</td><td></td></tr>
<tr><td>LOR</td><td>Lormes (Somee), France</td><td>471606.0N</td><td>35132.0E</td><td>520</td><td>66 03 29</td><td></td></tr>
<tr><td>LPA</td><td>La Plata, Argentina</td><td>345432.0S</td><td>575555.0W</td><td>14</td><td>62 02 17</td><td></td></tr>
<tr><td>LPB</td><td>La Paz, Bolivia</td><td>163157.6S</td><td>680554.1W</td><td>3292</td><td>62 03 03</td><td></td></tr>
<tr><td>LPS</td><td>La Palma, El Salvador</td><td>141732.0N</td><td>890943.0W</td><td>1000</td><td>62 06 08</td><td></td></tr>
<tr><td>LUB</td><td>Lubbock, Texas, USA</td><td>333500.0N</td><td>1015200.0W</td><td>979</td><td>61 12 02</td><td></td></tr>
<tr><td>MAL</td><td>Malaga, Spain</td><td>364339.0N</td><td>42440.0W</td><td>60</td><td>62 03 07</td><td></td></tr>
<tr><td>MAN</td><td>Manila (Diliman), Philippine Is.</td><td>143943.2N</td><td>1210436.7E</td><td>70</td><td>62 06 26</td><td></td></tr>
<tr><td>MAT</td><td>Matsushiro, Japan</td><td>363230.0N</td><td>1381232.0E</td><td>422</td><td>65 08 01</td><td></td></tr>
<tr><td>MDS</td><td>Madison, Wisconsin, USA</td><td>432220.0N</td><td>894536.0W</td><td>278</td><td>61 11 18</td><td>66 11 30</td></tr>
<tr><td>MHI</td><td>Mashhad, Iran</td><td>361800.0N</td><td>592940.2E</td><td>1100</td><td>76 09 14</td><td></td></tr>
<tr><td>MNN</td><td>Minneapolis, Minnesota, USA</td><td>445452.0N</td><td>931124.0W</td><td>217</td><td>62 07 05</td><td>65 04 11</td></tr>
<tr><td>MSH</td><td>Mashhad, Iran</td><td>361840.0N</td><td>593516.0E</td><td>987</td><td>65 07 19</td><td>75 09 05</td></tr>
<tr><td>MSO</td><td>Missoula, Montana, USA</td><td>464945.0N</td><td>1135626.0W</td><td>1264</td><td>73 09 01</td><td></td></tr>
<tr><td>MUN</td><td>Mundaring, Australia</td><td>315842.0S</td><td>1161230.0E</td><td>253</td><td>62 05 30</td><td></td></tr>
<tr><td>NAI</td><td>Nairobi, Kenya</td><td>11626.2S</td><td>364813.2E</td><td>1692</td><td>63 06 01</td><td></td></tr>
<tr><td>NAT</td><td>Natal, Brazil</td><td>50700.0S</td><td>350200.0W</td><td>10</td><td>65 06 23</td><td>75 11 30</td></tr>
<tr><td>NDI</td><td>New Delhi (Delhi), India</td><td>284100.0N</td><td>771300.0E</td><td>207</td><td>63 04 04</td><td></td></tr>
<tr><td>NHA</td><td>Nhatrang, South Vietnam</td><td>121236.0N</td><td>1091242.0E</td><td>5</td><td>64 05 05</td><td>71 07 31</td></tr>
<tr><td>NIL</td><td>Nilore, Pakistan</td><td>333900.0N</td><td>731506.0E</td><td>536</td><td>69 06 03</td><td></td></tr>
<tr><td>NNA</td><td>Nana, Peru</td><td>115915.2S</td><td>765031.7W</td><td>575</td><td>62 06 14</td><td></td></tr>
<tr><td>NOR</td><td>Nord, Greenland</td><td>813600.0N</td><td>164100.0W</td><td>36</td><td>63 10 27</td><td>72 04 22</td></tr>
<tr><td>NUR</td><td>Nurmijarvi, Finland</td><td>603032.4N</td><td>243905.1E</td><td>102</td><td>62 07 11</td><td></td></tr>
<tr><td>OGD</td><td>Ogdensburg, New Jersey, USA</td><td>410515.0N</td><td>743545.0W</td><td>-367</td><td>61 09 13</td><td></td></tr>
<tr><td>OXF</td><td>Oxford, New Jersey, USA</td><td>343042.5N</td><td>892433.0W</td><td>101</td><td>63 09 01</td><td>76 04 30</td></tr>
<tr><td>PDA</td><td>Ponta Delgada, Azores</td><td>374448.0N</td><td>253948.0W</td><td>35</td><td>62 02 03</td><td></td></tr>
<tr><td>PEL</td><td>Peldehue, Chile</td><td>330837.0S</td><td>704107.0W</td><td>690</td><td>64 03 04</td><td></td></tr>
<tr><td>PLM</td><td>Palomar, California, USA</td><td>332112.4N</td><td>1165142.1W</td><td>1692</td><td>61 11 18</td><td>63 01 28</td></tr>
<tr><td>PMG</td><td>Port Moresby, Papua-New Guinea</td><td>924335.0S</td><td>1470914.0E</td><td>67</td><td>62 06 21</td><td></td></tr>
<tr><td>PPO</td><td>Poona, India</td><td>183200.0N</td><td>735100.0E</td><td>560</td><td>64 11 01</td><td></td></tr>
<tr><td>PRE</td><td>Pretoria, South Africa</td><td>254512.0S</td><td>281124.0E</td><td>1333</td><td>62 09 30</td><td>81 06 30</td></tr>
<tr><td>PTO</td><td>Porto (Serro do Pilar), Portugal</td><td>410819.0N</td><td>83608.0W</td><td>88</td><td>63 03 31</td><td></td></tr>
<tr><td>QUE</td><td>Quetta, Pakistan</td><td>301118.0N</td><td>665700.0E</td><td>1721</td><td>62 07 10</td><td></td></tr>
<tr><td>QUI</td><td>Quito, Ecuador</td><td>1200.5S</td><td>783001.8W</td><td>2837</td><td>63 01 28</td><td>76 05 31</td></tr>
<tr><td>RAB</td><td>Rabaul, New Britain</td><td>41128.6S</td><td>1521011.4E</td><td>184</td><td>62 02 12</td><td></td></tr>
<tr><td>RAR</td><td>Rarotonga, Cook Islands</td><td>211245.0S</td><td>1594624.0W</td><td>28</td><td>65 05 08</td><td></td></tr>
<tr><td>RCD</td><td>Rapid City, South Dakota, USA</td><td>440430.0N</td><td>1031230.0W</td><td>995</td><td>61 12 06</td><td></td></tr>
<tr><td>RIV</td><td>Riverview, Australia</td><td>334945.7S</td><td>1510930.0E</td><td>25</td><td>62 12 12</td><td></td></tr>
<tr><td>SBA</td><td>Scott Base, Antarctica</td><td>775101.0S</td><td>1664522.0E</td><td>38</td><td>63 02 17</td><td></td></tr>
<tr><td>SCP</td><td>State College, Pennsylvania, USA</td><td>404742.0N</td><td>775154.0W</td><td>352</td><td>61 12 05</td><td></td></tr>
<tr><td>SDB</td><td>Sa Da Bandiera, Angola</td><td>145533.0S</td><td>133419.0E</td><td>1781</td><td>64 10 26</td><td>75 02 28</td></tr>
<tr><td>SEO</td><td>Seoul (Keizyo), South Korea</td><td>373400.0N</td><td>1265800.0E</td><td>86</td><td>63 03 07</td><td></td></tr>
<tr><td>SHA</td><td>Spring Hill, Alabama, USA</td><td>304139.7N</td><td>880834.1W</td><td>61</td><td>62 03 07</td><td></td></tr>
<tr><td>SHI</td><td>Shiraz, Iran</td><td>293817.9N</td><td>523111.8E</td><td>1596</td><td>63 05 04</td><td></td></tr>
<tr><td>SHK</td><td>Shiraki, Japan</td><td>343156.0N</td><td>1324039.0E</td><td>285</td><td>65 12 22</td><td></td></tr>
<tr><td>SHL</td><td>Shillong, India</td><td>253400.0N</td><td>915300.0E</td><td>1600</td><td>63 03 16</td><td></td></tr>
<tr><td>SJG</td><td>San Juan, Puerto Rico</td><td>180642.0N</td><td>660900.0W</td><td>457</td><td>64 10 12</td><td></td></tr>
<tr><td>SLR</td><td>Silverton, Rep. of South Africa</td><td>254405.6S</td><td>281653.9E</td><td>1348</td><td>81 09 06</td><td></td></tr>
<tr><td>SNA</td><td>Sanae, Antarctica</td><td>701894.0S</td><td>21930.0W</td><td>57</td><td>64 02 06</td><td></td></tr>
<tr><td>SNK</td><td>Songkhla, Thailand</td><td>71024.0N</td><td>1003712.0E</td><td>4</td><td>65 11 04</td><td></td></tr>
<tr><td>SOM</td><td>Sombrero, Chile</td><td>524651.0S</td><td>691432.0W</td><td>73</td><td>64 10 06</td><td></td></tr>
<tr><td>SPA</td><td>South Pole, Antarctica</td><td>900000.0S</td><td>0.0E</td><td>2927</td><td>63 02 02</td><td></td></tr>
<tr><td>STU</td><td>Stuttgart, German Fed. Republic</td><td>484619.0N</td><td>91142.0E</td><td>360</td><td>62 01 20</td><td></td></tr>
<tr><td>TAB</td><td>Tabriz, Iran</td><td>380403.0N</td><td>461936.0E</td><td>1430</td><td>65 08 10</td><td></td></tr>
</table>
</html>
Table 1.--Stations in Worldwide Standard Seismograph Network (Continued)

<table>
  <tr>
    <th>Station code</th>
    <th>Station</th>
    <th>Latitude</th>
    <th>Longitude</th>
    <th>Elev.</th>
    <th>Date opened</th>
    <th>Date closed</th>
  </tr>
  <tr>
    <td>TAU</td>
    <td>Tasmania University, Australia</td>
    <td>425435.7S</td>
    <td>1471913.5E</td>
    <td>132</td>
    <td>62 05 18</td>
    <td></td>
  </tr>
  <tr>
    <td>TOL</td>
    <td>Toledo, Spain</td>
    <td>395253.0N</td>
    <td>40255.0W</td>
    <td>480</td>
    <td>62 03 20</td>
    <td></td>
  </tr>
  <tr>
    <td>TPM</td>
    <td>Tepoztlan, Mexico</td>
    <td>185900.0N</td>
    <td>993042.0W</td>
    <td>1500</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>TRI</td>
    <td>Trieste (Grotta Gigante), Italy</td>
    <td>454232.0N</td>
    <td>134551.0E</td>
    <td>126</td>
    <td>63 07 04</td>
    <td></td>
  </tr>
  <tr>
    <td>TRN</td>
    <td>Trinidad (St. Augustine), Trinidad</td>
    <td>103856.1N</td>
    <td>612410.0W</td>
    <td>24</td>
    <td>62 01 08</td>
    <td></td>
  </tr>
  <tr>
    <td>TUC</td>
    <td>Tucson, Arizona, USA</td>
    <td>321835.0N</td>
    <td>1104656.0W</td>
    <td>985</td>
    <td>62 12 06</td>
    <td>81 12 31</td>
  </tr>
  <tr>
    <td>UME</td>
    <td>Umea, Sweden</td>
    <td>634854.0N</td>
    <td>20412.0E</td>
    <td>16</td>
    <td>62 01 11</td>
    <td></td>
  </tr>
  <tr>
    <td>UNM</td>
    <td>Universidad National, Mexico</td>
    <td>191944.4N</td>
    <td>991041.1W</td>
    <td>2257</td>
    <td>67 06 03</td>
    <td>70 10 08</td>
  </tr>
  <tr>
    <td>VAL</td>
    <td>Valentia, Ireland</td>
    <td>515622.0N</td>
    <td>101439.0W</td>
    <td>14</td>
    <td>62 10 16</td>
    <td></td>
  </tr>
  <tr>
    <td>WEL</td>
    <td>Wellington, New Zealand</td>
    <td>411710.0S</td>
    <td>174460.0E</td>
    <td>122</td>
    <td>62 04 05</td>
    <td></td>
  </tr>
  <tr>
    <td>WES</td>
    <td>Weston, Massachusetts, USA</td>
    <td>422304.9N</td>
    <td>711919.5W</td>
    <td>60</td>
    <td>61 10 08</td>
    <td></td>
  </tr>
  <tr>
    <td>WIN</td>
    <td>Windhoek, Namibia</td>
    <td>223400.0S</td>
    <td>170600.0E</td>
    <td>1728</td>
    <td>62 12 12</td>
    <td></td>
  </tr>
</table>

Table 2.--Stations in Canadian Seismograph Network

[Leaders (---) = date unavailable]

<table>
  <tr>
    <th>Station code</th>
    <th>Station</th>
    <th>Latitude</th>
    <th>Longitude</th>
    <th>Elev.</th>
    <th>Date opened</th>
    <th>Date closed</th>
  </tr>
  <tr>
    <td>ALB</td>
    <td>Alberni, B.C., Canada</td>
    <td>491614.0N</td>
    <td>1244918.0W</td>
    <td>25</td>
    <td>51 --</td>
    <td></td>
  </tr>
  <tr>
    <td>ALE</td>
    <td>Alert, NWT, Canada</td>
    <td>822900.0N</td>
    <td>622400.0W</td>
    <td>65</td>
    <td>61 09 29</td>
    <td></td>
  </tr>
  <tr>
    <td>BAN</td>
    <td>Banff, Alta., Canada</td>
    <td>511018.0N</td>
    <td>1153330.0W</td>
    <td>1500</td>
    <td>56 08 --</td>
    <td>66 09 22</td>
  </tr>
  <tr>
    <td>BLC</td>
    <td>Baker Lake, NWT, Canada</td>
    <td>641900.0N</td>
    <td>960100.0W</td>
    <td>16</td>
    <td>65 07 26</td>
    <td></td>
  </tr>
  <tr>
    <td>CHQ</td>
    <td>Charlesbourg, Que., Canada</td>
    <td>465323.0N</td>
    <td>711800.0W</td>
    <td>145</td>
    <td>71 11 11</td>
    <td></td>
  </tr>
  <tr>
    <td>CMC</td>
    <td>Copper Mine, NWT, Canada</td>
    <td>675000.0N</td>
    <td>1150500.0W</td>
    <td>31</td>
    <td>63 03 15</td>
    <td>69 11 26</td>
  </tr>
  <tr>
    <td>EDM</td>
    <td>Edmonton, Alta., Canada</td>
    <td>531318.0N</td>
    <td>1132100.0W</td>
    <td>730</td>
    <td>63 04 --</td>
    <td></td>
  </tr>
  <tr>
    <td>FBC</td>
    <td>Frobisher Bay, NWT, Canada</td>
    <td>634400.0N</td>
    <td>682800.0W</td>
    <td>45</td>
    <td>63 08 --</td>
    <td>72 11 25</td>
  </tr>
  <tr>
    <td>FCC</td>
    <td>Fort Churchill, Man., Canada</td>
    <td>584542.0N</td>
    <td>940512.0W</td>
    <td>39</td>
    <td>67 06 24</td>
    <td></td>
  </tr>
  <tr>
    <td>FFC</td>
    <td>Flin Flon, Man., Canada</td>
    <td>544330.0N</td>
    <td>1015842.0W</td>
    <td>338</td>
    <td>65 02 22</td>
    <td></td>
  </tr>
  <tr>
    <td>FRB</td>
    <td>Frobisher, NWT, Canada</td>
    <td>634448.0N</td>
    <td>683248.0W</td>
    <td>18</td>
    <td>72 11 28</td>
    <td></td>
  </tr>
  <tr>
    <td>FSJ</td>
    <td>Fort St. James, B.C., Canada</td>
    <td>542600.0N</td>
    <td>1241500.0W</td>
    <td>772</td>
    <td>65 05 12</td>
    <td>79 04 17</td>
  </tr>
  <tr>
    <td>GWC</td>
    <td>Great Whale River, Que., Canada</td>
    <td>551730.0N</td>
    <td>774512.0W</td>
    <td>8</td>
    <td>65 09 27</td>
    <td>72 09 01</td>
  </tr>
  <tr>
    <td>HAL</td>
    <td>Halifax, N.S., Canada</td>
    <td>443816.0N</td>
    <td>633530.0W</td>
    <td>56</td>
    <td>15 --</td>
    <td></td>
  </tr>
  <tr>
    <td>INK</td>
    <td>Inuvik, NWT, Canada</td>
    <td>681730.0N</td>
    <td>133300.0W</td>
    <td>40</td>
    <td>69 02 22</td>
    <td></td>
  </tr>
  <tr>
    <td>LHC</td>
    <td>Lakehead Univ., Ont., Canada</td>
    <td>482500.0N</td>
    <td>891600.0W</td>
    <td>196</td>
    <td>69 02 28</td>
    <td></td>
  </tr>
  <tr>
    <td>LND</td>
    <td>London, Ont., Canada</td>
    <td>430224.0N</td>
    <td>811100.0W</td>
    <td>246</td>
    <td>61 12 07</td>
    <td>67 05 31</td>
  </tr>
  <tr>
    <td>MBC</td>
    <td>Mould Bay, NWT, Canada</td>
    <td>761430.0N</td>
    <td>1192136.0W</td>
    <td>15</td>
    <td>61 10 18</td>
    <td></td>
  </tr>
  <tr>
    <td>MCC</td>
    <td>Mica Creek, B.C., Canada</td>
    <td>520306.0N</td>
    <td>1183507.0W</td>
    <td>578</td>
    <td>66 07 05</td>
    <td>77 06 03</td>
  </tr>
  <tr>
    <td>MNT</td>
    <td>Montreal, Que., Canada</td>
    <td>453009.0N</td>
    <td>733723.0W</td>
    <td>112</td>
    <td>54 09 --</td>
    <td></td>
  </tr>
  <tr>
    <td>OTT</td>
    <td>Ottawa, Ont., Canada</td>
    <td>452358.0N</td>
    <td>754257.0W</td>
    <td>83</td>
    <td>06 --</td>
    <td></td>
  </tr>
  <tr>
    <td>PBO</td>
    <td>Poste-de-la-Baleine, Que., Canada</td>
    <td>551636.0N</td>
    <td>774436.0W</td>
    <td>20</td>
    <td>72 09 14</td>
    <td></td>
  </tr>
  <tr>
    <td>PGC</td>
    <td>Sidney, B.C., Canada</td>
    <td>483900.0N</td>
    <td>1232702.0W</td>
    <td>5</td>
    <td>78 08 --</td>
    <td></td>
  </tr>
  <tr>
    <td>PHC</td>
    <td>Port Hardy, B.C., Canada</td>
    <td>504224.0N</td>
    <td>1272554.0W</td>
    <td>33</td>
    <td>62 12 --</td>
    <td></td>
  </tr>
  <tr>
    <td>PNT</td>
    <td>Penticton, B.C., Canada</td>
    <td>491900.0N</td>
    <td>1193700.0W</td>
    <td>550</td>
    <td>60 01 --</td>
    <td></td>
  </tr>
  <tr>
    <td>POC</td>
    <td>La Pocatiere, Que., Canada</td>
    <td>472152.0N</td>
    <td>700227.0W</td>
    <td>61</td>
    <td>72 01 20</td>
    <td>80 10 17</td>
  </tr>
  <tr>
    <td>QCC</td>
    <td>Queen Charlotte City, B.C., Canada</td>
    <td>531518.0N</td>
    <td>1320518.0W</td>
    <td>3</td>
    <td>71 07 24</td>
    <td>77 07 13</td>
  </tr>
  <tr>
    <td>QCQ</td>
    <td>Quebec, Que., Canada</td>
    <td>464644.0N</td>
    <td>711633.0W</td>
    <td>91</td>
    <td>71 09 24</td>
    <td></td>
  </tr>
  <tr>
    <td>RES</td>
    <td>Resolute, NWT, Canada</td>
    <td>744112.0N</td>
    <td>945400.0W</td>
    <td>15</td>
    <td>50 --</td>
    <td></td>
  </tr>
  <tr>
    <td>SCB</td>
    <td>Scarborough, Ont., Canada</td>
    <td>434300.0N</td>
    <td>791400.0W</td>
    <td>153</td>
    <td>62 05 23</td>
    <td>74 -- --</td>
  </tr>
  <tr>
    <td>SCH</td>
    <td>Schefferville, Que., Canada</td>
    <td>544900.0N</td>
    <td>664700.0W</td>
    <td>540</td>
    <td>62 07 11</td>
    <td></td>
  </tr>
  <tr>
    <td>SES</td>
    <td>Suffield, Alta., Canada</td>
    <td>502345.0N</td>
    <td>1110230.0W</td>
    <td>770</td>
    <td>66 05 11</td>
    <td></td>
  </tr>
  <tr>
    <td>SFA</td>
    <td>Seven Falls, Que., Canada</td>
    <td>470724.0N</td>
    <td>704936.0W</td>
    <td>232</td>
    <td>27 -- --</td>
    <td>75 07 31</td>
  </tr>
  <tr>
    <td>SHF</td>
    <td>Shawinigan Falls, Que., Canada</td>
    <td>463306.0N</td>
    <td>724548.0W</td>
    <td>60</td>
    <td>28 -- --</td>
    <td>65 12 08</td>
  </tr>
  <tr>
    <td>SIC</td>
    <td>Sept-Isles, Que., Canada</td>
    <td>501120.0N</td>
    <td>664425.0W</td>
    <td>283</td>
    <td>63 -- --</td>
    <td></td>
  </tr>
  <tr>
    <td>STJ</td>
    <td>Saint Johns, Newfoundland, Canada</td>
    <td>473418.0N</td>
    <td>524400.0W</td>
    <td>62</td>
    <td>64 06 01</td>
    <td></td>
  </tr>
  <tr>
    <td>SUD</td>
    <td>Sudbury, Ont., Canada</td>
    <td>462800.0N</td>
    <td>805800.0W</td>
    <td>267</td>
    <td>67 11 22</td>
    <td></td>
  </tr>
  <tr>
    <td>UNB</td>
    <td>Fredericton, N.B., Canada</td>
    <td>455700.0N</td>
    <td>663800.0W</td>
    <td>56</td>
    <td>71 04 01</td>
    <td></td>
  </tr>
  <tr>
    <td>VIC</td>
    <td>Victoria, B.C., Canada</td>
    <td>483110.0N</td>
    <td>1232455.0W</td>
    <td>197</td>
    <td>1898 --</td>
    <td>78 03 29</td>
  </tr>
  <tr>
    <td>WHC</td>
    <td>White Horse, Y.T., Canada</td>
    <td>604412.0N</td>
    <td>1350545.0W</td>
    <td>732</td>
    <td>71 09 01</td>
    <td></td>
  </tr>
  <tr>
    <td>YKC</td>
    <td>Yellowknife, NWT, Canada</td>
    <td>622842.0N</td>
    <td>1142824.0W</td>
    <td>198</td>
    <td>64 07 15</td>
    <td></td>
  </tr>
</table>
Table 3.--Stations in People's Republic of China Seismograph Network

[Leaders (---) = data unavailable]

<table>
  <tr>
    <th>Station code</th>
    <th>Station</th>
    <th>Latitude</th>
    <th>Longitude</th>
    <th>Elev. (m)</th>
    <th>Date opened yr mo da</th>
    <th>Date closed yr mo da</th>
  </tr>
  <tr>
    <td>BJI</td>
    <td>Beijing, People's Rep. of China</td>
    <td>400225.ON</td>
    <td>1161030.OE</td>
    <td>43</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>BTO</td>
    <td>Paoctou, People's Rep. of China</td>
    <td>403554.ON</td>
    <td>1100106.OE</td>
    <td>1120</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>CDU</td>
    <td>Chengdu, People's Rep. of China</td>
    <td>303937.ON</td>
    <td>1040040.OE</td>
    <td>--</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>CNH</td>
    <td>Changchun, People's Rep. of China</td>
    <td>434945.ON</td>
    <td>1251848.OE</td>
    <td>--</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>GYA</td>
    <td>Kweiyang, People's Rep. of China</td>
    <td>262731.ON</td>
    <td>1063950.OE</td>
    <td>1162</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>GZH</td>
    <td>Canton, People's Rep. of China</td>
    <td>230513.ON</td>
    <td>1132038.OE</td>
    <td>11</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>KMI</td>
    <td>Kunming, People's Rep. of China</td>
    <td>250724.ON</td>
    <td>1024424.OE</td>
    <td>1945</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>KSH</td>
    <td>Kashgar, People's Rep. of China</td>
    <td>392719.ON</td>
    <td>755848.OE</td>
    <td>1286</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>LSA</td>
    <td>Lhasa, People's Rep. of China</td>
    <td>294200.ON</td>
    <td>910900.OE</td>
    <td>3658</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>LZH</td>
    <td>Lanchou, People's Rep. of China</td>
    <td>360512.ON</td>
    <td>1035040.OE</td>
    <td>1560</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>NJZ</td>
    <td>Nanjing, People's Rep. of China</td>
    <td>320306.ON</td>
    <td>1185116.OE</td>
    <td>45</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>QZN</td>
    <td>Quanzhou, People's Rep. of China</td>
    <td>245635.2N</td>
    <td>1183530.2E</td>
    <td>21</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>SSE</td>
    <td>Sheshan, People's Rep. of China</td>
    <td>310548.ON</td>
    <td>1211111.OE</td>
    <td>--</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>TIA</td>
    <td>Tai'an, People's Rep. of China</td>
    <td>361241.ON</td>
    <td>1170728.OE</td>
    <td>300</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>WHN</td>
    <td>Wuhan, People's Rep. of China</td>
    <td>303237.ON</td>
    <td>1142101.OE</td>
    <td>26</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>WMQ</td>
    <td>Urumqi, People's Rep. of China</td>
    <td>434916.ON</td>
    <td>874142.OE</td>
    <td>970</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>XAN</td>
    <td>Hsian, People's Rep. of China</td>
    <td>340222.ON</td>
    <td>1085517.OE</td>
    <td>630</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
</table>

Table 4.--Nonstandard Seismograph Stations

[Leaders (---) = data unavailable]

<table>
  <tr>
    <th>Station code</th>
    <th>Station</th>
    <th>Latitude</th>
    <th>Longitude</th>
    <th>Elev. (m)</th>
    <th>Date opened yr mo da</th>
    <th>Date closed yr mo da</th>
  </tr>
  <tr>
    <td>ASP</td>
    <td>Alice Springs, Australia</td>
    <td>234100.0S</td>
    <td>1335348.0E</td>
    <td>600</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>CSC</td>
    <td>Columbia, South Carolina, USA</td>
    <td>340000.ON</td>
    <td>810200.0W</td>
    <td>94</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>DAR</td>
    <td>Darwin, Australia</td>
    <td>122430.0S</td>
    <td>1304906.0E</td>
    <td>6</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>HYB</td>
    <td>Hyderabad, India</td>
    <td>172501.ON</td>
    <td>783311.0E</td>
    <td>510</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>MTN</td>
    <td>Manton, Australia</td>
    <td>125046.2S</td>
    <td>1310749.8E</td>
    <td>80</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
  <tr>
    <td>TUL</td>
    <td>Tulsa, Oklahoma, USA</td>
    <td>355438.ON</td>
    <td>954733.0W</td>
    <td>256</td>
    <td>-- -- --</td>
    <td>-- -- --</td>
  </tr>
</table>
Table 5.--Stations in Global Digital Seismograph Network

<html>
<table>
<tr>
<th>Station code</th>
<th>Station</th>
<th>Latitude</th>
<th>Longitude</th>
<th>Elev.</th>
<th>Date opened<br>yr mo da</th>
<th>Date closed<br>yr mo da</th>
</tr>
<tr><th colspan="7">High-Gain Long-Period Network:</th></tr>
<tr><td>ALQ</td><td>Albuquerque, New Mexico, USA</td><td>345633.ON</td><td>1062727.0W</td><td>1849</td><td>71 11 06</td><td>78 07 16</td></tr>
<tr><td>CHG</td><td>Chiang Mai, Thailand</td><td>184724.ON</td><td>985837.0E</td><td>416</td><td>71 01 01</td><td>77 01 20</td></tr>
<tr><td>CTA</td><td>Charters Towers, Australia</td><td>200518.0S</td><td>1461516.0E</td><td>357</td><td>71 01 01</td><td>76 09 30</td></tr>
<tr><td>EIL</td><td>Eilat, Israel</td><td>293300.ON</td><td>345700.0E</td><td>200</td><td>71 01 01</td><td>78 12 31</td></tr>
<tr><td>FBK</td><td>Fairbanks, Alaska, USA</td><td>645358.0N</td><td>1480020.0W</td><td>330</td><td>71 01 25</td><td>72 04 25</td></tr>
<tr><td>KIP</td><td>Kipapa, Hawaii, USA</td><td>212524.ON</td><td>1580054.0W</td><td>70</td><td>72 03 06</td><td>79 08 14</td></tr>
<tr><td>KON</td><td>Kongsberg, Norway</td><td>593856.7N</td><td>93553.6E</td><td>216</td><td>71 09 23</td><td>78 07 14</td></tr>
<tr><td>MAT</td><td>Matsushiro, Japan</td><td>363230.ON</td><td>1381232.0E</td><td>422</td><td>72 12 22</td><td>77 04 26</td></tr>
<tr><td>OGD</td><td>Ogdensburg, New Jersey, USA</td><td>410515.ON</td><td>743645.0W</td><td>-367</td><td>71 01 01</td><td>80 02 28</td></tr>
<tr><td>TLO</td><td>Toledo, Spain</td><td>395136.ON</td><td>40052.9W</td><td>465</td><td>71 08 19</td><td>82 12 03</td></tr>
<tr><td>ZLP</td><td>Zongo (La Paz), Bolivia</td><td>161612.0S</td><td>680730.0W</td><td>4450</td><td>73 01 01</td><td>76 08 29</td></tr>
<tr><th colspan="7">Seismic Research Observatories:</th></tr>
<tr><td>ANMO</td><td>Albuquerque, New Mexico, USA</td><td>345646.3N</td><td>1062724.0W</td><td>1740</td><td>76 01 01</td><td></td></tr>
<tr><td>ANTO</td><td>Ankara, Turkey</td><td>395208.ON</td><td>324737.0E</td><td>883</td><td>78 08 02</td><td></td></tr>
<tr><td>BCAO</td><td>Bangui, Central African Republic</td><td>42601.ON</td><td>183207.0E</td><td>336</td><td>79 06 01</td><td></td></tr>
<tr><td>BOCO</td><td>Bogota, Colombia</td><td>43512.7N</td><td>740235.7W</td><td>3071</td><td>78 03 10</td><td></td></tr>
<tr><td>CHTO</td><td>Chiang Mai, Thailand</td><td>184724.ON</td><td>985837.0E</td><td>316</td><td>77 07 01</td><td></td></tr>
<tr><td>GRFO</td><td>Graefenberg, German Fed. Republic</td><td>494130.8N</td><td>111318.1E</td><td>425</td><td>78 10 01</td><td></td></tr>
<tr><td>GUMO</td><td>Guam, Mariana Islands</td><td>133516.1N</td><td>144158.7E</td><td>14</td><td>76 01 01</td><td></td></tr>
<tr><td>MAIO</td><td>Mashhad, Iran</td><td>361800.ON</td><td>592918.0E</td><td>1000</td><td>76 01 01</td><td>78 10 11</td></tr>
<tr><td>NWAO</td><td>Mundaring (Narrogin), Australia</td><td>325536.5S</td><td>1171400.0E</td><td>265</td><td>76 03 02</td><td></td></tr>
<tr><td>SHIO</td><td>Shillong, India</td><td>253400.ON</td><td>915300.0E</td><td>1509</td><td>78 06 01</td><td></td></tr>
<tr><td>SNZO</td><td>Wellington, New Zealand</td><td>411837.0S</td><td>1744216.7E</td><td>-12</td><td>76 02 25</td><td></td></tr>
<tr><td>TATO</td><td>Taipei, Taiwan</td><td>245831.3N</td><td>1212917.8E</td><td>53</td><td>76 05 17</td><td></td></tr>
<tr><th colspan="7">Abbreviated Seismic Research Observatories:</th></tr>
<tr><td>CTAO</td><td>Charters Towers, Australia</td><td>200518.0S</td><td>1461516.0E</td><td>357</td><td>76 10 16</td><td></td></tr>
<tr><td>KAAO</td><td>Kabul, Afghanistan</td><td>343227.ON</td><td>690235.4E</td><td>1920</td><td>77 05 05</td><td></td></tr>
<tr><td>KONO</td><td>Kongsberg, Norway</td><td>593856.7N</td><td>93553.6E</td><td>216</td><td>78 08 16</td><td></td></tr>
<tr><td>MAJO</td><td>Matsushiro, Japan</td><td>363230.ON</td><td>1381232.0E</td><td>422</td><td>77 06 01</td><td></td></tr>
<tr><td>ZOBO</td><td>Zongo (La Paz), Bolivia</td><td>161612.0S</td><td>680730.0W</td><td>4450</td><td>76 09 10</td><td></td></tr>
<tr><th colspan="7">Digital Worldwide Standard Seismograph Network:</th></tr>
<tr><td>AFI</td><td>Afiamaulu, Western Samoa</td><td>135433.6S</td><td>1714638.1W</td><td>706</td><td>81 05 15</td><td></td></tr>
<tr><td>ALQ</td><td>Albuquerque, New Mexico, USA</td><td>345633.ON</td><td>1062727.0W</td><td>1849</td><td>81 03 02</td><td>82 07 31</td></tr>
<tr><td>BDF</td><td>Brasilia, Brazil</td><td>153949.8S</td><td>475412.0W</td><td>1260</td><td>82 06 08</td><td></td></tr>
<tr><td>BER</td><td>Bergen, Norway</td><td>602301.9N</td><td>52002.2E</td><td>50</td><td>81 08 10</td><td></td></tr>
<tr><td>COL</td><td>College, Alaska, USA</td><td>645400.ON</td><td>1474736.0W</td><td>320</td><td>82 01 06</td><td></td></tr>
<tr><td>GDH</td><td>Godhavn, Greenland</td><td>691500.ON</td><td>533200.0W</td><td>23</td><td>82 08 26</td><td></td></tr>
<tr><td>HON</td><td>Honolulu, Hawaii, USA</td><td>211917.8N</td><td>1580029.5W</td><td>2</td><td>83 03 21</td><td></td></tr>
<tr><td>JAS</td><td>Jamestown, California, USA</td><td>375648.ON</td><td>1202618.0W</td><td>457</td><td>80 10 01</td><td></td></tr>
<tr><td>KEV</td><td>Kevo, Finland</td><td>694519.0N</td><td>270024.0E</td><td>80</td><td>81 10 14</td><td></td></tr>
<tr><td>LEM</td><td>Lembang, Indonesia</td><td>650000.0S</td><td>1073700.0E</td><td>1252</td><td>82 06 02</td><td></td></tr>
<tr><td>LON</td><td>Longmire, Washington, USA</td><td>464500.ON</td><td>1214836.0W</td><td>854</td><td>80 10 01</td><td></td></tr>
<tr><td>SCP</td><td>State College, Pennsylvania, USA</td><td>404742.ON</td><td>775154.0W</td><td>352</td><td>81 01 29</td><td></td></tr>
<tr><td>SLR</td><td>Silverton, Rep. of South Africa</td><td>284405.6S</td><td>281653.8E</td><td>1348</td><td>81 10 24</td><td></td></tr>
<tr><td>TAU</td><td>Tasmania University, Australia</td><td>425435.7S</td><td>1471913.5E</td><td>132</td><td>81 06 10</td><td></td></tr>
<tr><td>TOL</td><td>Toledo, Spain</td><td>395253.ON</td><td>40255.0W</td><td>480</td><td>81 11 03</td><td></td></tr>
<tr><th colspan="7">Regional Seismic Test Network:</th></tr>
<tr><td>RSCP</td><td>Cumberland Plateau, Tennessee, USA</td><td>353600.ON</td><td>853408.0W</td><td>485</td><td>82 12 12</td><td></td></tr>
<tr><td>RSNT</td><td>Yellowknife, NWT, Canada</td><td>622847.ON</td><td>1143530.0W</td><td>-50</td><td>82 12 12</td><td></td></tr>
<tr><td>RSNY</td><td>Adirondack, New York, USA</td><td>443253.ON</td><td>743147.0W</td><td>357</td><td>82 12 12</td><td></td></tr>
<tr><td>RSON</td><td>Red Lake, Ont., Canada</td><td>505132.ON</td><td>934208.0W</td><td>221</td><td>82 12 12</td><td></td></tr>
<tr><td>RSSD</td><td>Black Hills, South Dakota, USA</td><td>440713.5N</td><td>1040210.3W</td><td>1950</td><td>82 12 12</td><td></td></tr>
<tr><th colspan="7">Miscellaneous:</th></tr>
<tr><td>GAC</td><td>Glen Almond, Que., Canada</td><td>454211.9N</td><td>752841.9W</td><td>62</td><td>82 04 26</td><td></td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms

[X = records filmed; SD = Worldwide Standard Network; CA = Canadian Network; HG = High-Gain Long-Period Network; NS = Nonstandard Network; RO = Seismic Research Observatory Network; AR = Abbreviated Seismic Research Observatory Network; and PR = Peoples Republic of China Network]

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>UND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>UND</th>
  </tr>
  <tr><td>AAE</td><td>1962</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td><td>ADE</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALB</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ADE</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAE</td><td>1981</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>X</td><td>AFI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1962</td><td>SD</td><td></td><td></td><td></td><td></td><td>AFI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AFI</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1981</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>X</td><td>AKU</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>AAM</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td><td>AKU</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1962</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1977</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1978</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1979</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>ADE</td><td>1967</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td><td>AKU</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>ALQ</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>ALQ</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANP</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANP</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>AQU</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1962</td><td>SD</td><td></td><td></td><td></td><td>X</td>
    <td>ARE</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANT</td><td>1967</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ARE</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ALQ</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ANT</td><td>1978</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td>
    <td>ARE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1975</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANT</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1976</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANT</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1977</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANT</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANT</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ARE</td><td>1982</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANTO</td><td>1978</td><td>RO</td><td></td><td></td><td></td><td></td>
    <td>ASP</td><td>1970</td><td>NS</td><td></td><td></td><td></td><td>X</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANTO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ASP</td><td>1971</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANTO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ASP</td><td>1972</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ANTO</td><td>1981</td><td>RO</td><td>XXX</td><td>X</td><td>X</td><td>X</td>
    <td>ASP</td><td>1973</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td>
    <td>ANTO</td><td>1982</td><td>RO</td><td>X</td><td>X</td><td>XX</td><td>XXX</td>
    <td>ASP</td><td>1974</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANMO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td>
    <td>ANTO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td>
    <td>ASP</td><td>1975</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td>
    <td>ASP</td><td>1976</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ASP</td><td>1977</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1964</td><td>SD</td><td>X</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ASP</td><td>1978</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>X</td>
    <td>ASP</td><td>1979</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1967</td><td>SD</td><td>X</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ASP</td><td>1980</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1968</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ASP</td><td>1981</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1969</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ASP</td><td>1982</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1970</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ASP</td><td>1983</td><td>NS</td><td>XXX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>ANP</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1973</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td>
    <td>ATL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1974</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ATL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1975</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XX</td>
    <td>ATL</td><td>1967</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td>
  </tr>
  <tr>
    <td>ANP</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1976</td><td>SD</td><td></td><td></td><td></td><td></td>
    <td>ATL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ANP</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>AQU</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ATL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>ATL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>BAG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XXX</td>
    <td>BAG</td><td>1983</td><td>SD</td><td>XXX</td><td>XX</td><td></td><td></td>
    <td>BHP</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BAN</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BAN</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BAN</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BAN</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>BAN</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>BHP</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BCAO</td><td>1979</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BCAO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BCAO</td><td>1981</td><td>RO</td><td>XXX</td><td>X</td><td>X</td><td>X</td>
    <td>BHP</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BCAO</td><td>1982</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1973</td><td>SD</td><td>XXX</td><td>X</td><td>X</td><td>X</td>
    <td>BHP</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1977</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>ATU</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BJI</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BJI</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BJI</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1962</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BDF</td><td>1980</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>BKS</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>ATU</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1981</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BKS</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
  </tr>
  <tr>
    <td>BAG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>BLA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1984</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1985</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1986</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1987</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1988</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BEA</td><td>1989</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1961</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>BAG</td><td>1984</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BHP</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>BLA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr>
<th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
<th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
<th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
</tr>
<tr><td>BLA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td><td>CAR</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOG</td><td>1983</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td><td>CAR</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLA</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1967</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td></tr>
<tr><td>BLC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BOZ</td><td>1968</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CCG</td><td>1962</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BTO</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CCG</td><td>1963</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BTO</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CDU</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BTO</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CDU</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BTO</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CDU</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1973</td><td>HG</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1974</td><td>HG</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td><td>CHG</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1977</td><td>HG</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1965</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1967</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BLC</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td><td>BUL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOC</td><td>1978</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOC</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOC</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOC</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOC</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td><td>BUL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>BUL</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td><td>CHG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1979</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1983</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1983</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1983</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1983</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>BOG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CAR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td><td>CHG</td><td>1983</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr><th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th></tr>
<tr><td>CHQ</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XX</td><td></td></tr>
<tr><td>CHQ</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHQ</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>X</td><td></td></tr>
<tr><td>CHTO</td><td>1977</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CHTO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>CMC</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1963</td><td>SD</td><td>XXX</td><td>XX</td><td></td><td></td></tr>
<tr><td>CMC</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CMC</td><td>1967</td><td>SD</td><td>XXX</td><td>XX</td><td>XX</td><td></td></tr>
<tr><td>CNH</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CNH</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CNH</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td></tr>
<tr><td>COL</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COL</td><td>1983</td><td>SD</td><td>XXX</td><td>XX</td><td></td><td></td></tr>
<tr><td>COP</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COP</td><td>1983</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td></tr>
<tr><td>COR</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>COR</td><td>1983</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td></tr>
<tr><td>CSC</td><td>1963</td><td>NS</td><td></td><td></td><td></td><td></td></tr>
<tr><td>CSC</td><td>1964</td><td>NS</td><td>XXX</td><td>X</td><td>X</td><td></td></tr>
<tr><td>CSC</td><td>1965</td><td>NS</td><td>XXX</td><td>XXX</td><td>X</td><td></td></tr>
<tr><td>CSC</td><td>1967</td><td>NS</td><td>XXX</td><td>X</td><td>X</td><td></td></tr>
<tr><td>CSC</td><td>1968</td><td>NS</td><td>XX</td><td>XX</td><td>XX</td><td></td></tr>
<tr><td>CSC</td><td>1969</td><td>NS</td><td></td><td></td><td>X</td><td></td></tr>
<tr><td>CSC</td><td>1970</td><td>NS</td><td>X</td><td>XX</td><td>X</td><td></td></tr>
<tr><td>CTA</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td></tr>
<tr><td>CTA</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTA</td><td>1983</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td></tr>
<tr><td>CTAO</td><td>1976</td><td>AR</td><td></td><td></td><td></td><td></td></tr>
<tr><td>CTAO</td><td>1977</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1978</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1979</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1980</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1981</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1982</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>CTAO</td><td>1983</td><td>AR</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>DAG</td><td>1972</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
<tr><td>DAG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>DAG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAG</td><td>1983</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>DUG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1961</td><td>SD</td><td>X</td><td>XXX</td><td></td><td></td>
    <td>DUG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>DUG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1977</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1967</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>DUG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EPT</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>DAL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1964</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>DUG</td><td>1983</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>ESK</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1978</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAL</td><td>1979</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>EDM</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAR</td><td>1971</td><td>NS</td><td>XX</td><td>XXX</td><td></td><td></td>
    <td>EDM</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAR</td><td>1972</td><td>NS</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>EDM</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1964</td><td>SD</td><td>X</td><td>XXX</td><td></td><td></td>
    <td>EDM</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ESK</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1978</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1963</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1964</td><td>CA</td><td>X</td><td>X</td><td>XX</td><td>XX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1965</td><td>CA</td><td>XX</td><td>X</td><td>XX</td><td>XX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1966</td><td>CA</td><td>X</td><td>X</td><td>XX</td><td>XX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EDM</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DAV</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>EIL</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DUG</td><td>1962</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DUG</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1976</td><td>HG</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBK</td><td>1971</td><td>HG</td><td>XX</td><td>X</td><td>XX</td><td>XXX</td>
  </tr>
  <tr>
    <td>DUG</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1977</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>FBK</td><td>1972</td><td>HG</td><td>XXX</td><td>X</td><td></td><td></td>
  </tr>
  <tr>
    <td>EIL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>EIL</td><td>1978</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr><td>FCC</td><td>1967</td><td>CA</td><td></td><td>XXX</td><td>XXX</td><td></td></tr>
  <tr><td>FCC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FCC</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td></td><td></td></tr>
  <tr><td>FFC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FFC</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td></td><td></td></tr>
  <tr><td>FL0</td><td>1961</td><td>SD</td><td></td><td>X</td><td>XXX</td><td></td></tr>
  <tr><td>FL0</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FL0</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1972</td><td>CA</td><td></td><td>X</td><td></td><td></td></tr>
  <tr><td>FRB</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FRB</td><td>1982</td><td>CA</td><td>X</td><td>XXX</td><td></td><td></td></tr>
  <tr><td>FSJ</td><td>1965</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FSJ</td><td>1979</td><td>CA</td><td>XXX</td><td>X</td><td></td><td></td></tr>
  <tr><td>FVM</td><td>1974</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
  <tr><td>FVM</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>FVM</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1962</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
  <tr><td>GDH</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GDH</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1961</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
  <tr><td>GEO</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1978</td><td>SD</td><td>X</td><td>XXX</td><td></td><td></td></tr>
  <tr><td>GEO</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GEO</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1964</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1965</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1968</td><td>SD</td><td>X</td><td>XXX</td><td></td><td></td></tr>
  <tr><td>GIE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
  <tr><td>GIE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>GIE</td><td>1981</td><td>SD</td><td>X</td><td>XXX</td><td>XX</td><td></td>
    <td>GSC</td><td>1963</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUMO</td><td>1983</td><td>RO</td><td>X</td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>GOL</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1968</td><td>SD</td><td>XXX</td><td>XX</td><td>XX</td><td>XXX</td>
    <td>GWC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GWC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GYA</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GYA</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GYA</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GYA</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GZH</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GZH</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GZH</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GSC</td><td>1982</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>GZH</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GOL</td><td>1983</td><td>SD</td><td>XX</td><td>XX</td><td></td><td></td>
    <td>GUA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1978</td><td>RO</td><td></td><td></td><td></td><td></td>
    <td>GUA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>X</td><td>XX</td>
    <td>GUA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRFO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td>
    <td>GUA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1967</td><td>SD</td><td></td><td></td><td></td><td></td>
    <td>GUA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HAL</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1963</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1974</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUA</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>HKC</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1978</td><td>SD</td><td>X</td><td>XX</td><td>XX</td><td>X</td>
    <td>GUMO</td><td>1976</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1979</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUMO</td><td>1977</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUMO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>GUMO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XX</td>
    <td>GUMO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>GUMO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>GRM</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XX</td>
    <td>GUMO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>HKC</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr><th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th></tr>
<tr><td>HKC</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HKC</td><td>1982</td><td>SD</td><td>XXX</td><td>XX</td><td>XX</td><td>XX</td></tr>
<tr><td>HKC</td><td>1983</td><td>SD</td><td>XXX</td><td></td><td></td><td></td></tr>
<tr><td>HLW</td><td>1962</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>HLW</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td></tr>
<tr><td>HLW</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1966</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>HLW</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td></tr>
<tr><td>HLW</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HLW</td><td>1981</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>HLW</td><td>1982</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>HNR</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1976</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td></tr>
<tr><td>HNR</td><td>1983</td><td>SD</td><td>X</td><td>XX</td><td>XX</td><td>XXX</td></tr>
<tr><td>HON</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td></tr>
<tr><td>HOW</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td></tr>
<tr><td>HOW</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HOW</td><td>1965</td><td>SD</td><td>XXX</td><td>XX</td><td>X</td><td>XXX</td></tr>
<tr><td>HOW</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HOW</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XX</td></tr>
<tr><td>HOW</td><td>1968</td><td>SD</td><td>X</td><td>X</td><td>XX</td><td></td></tr>
<tr><td>HYB</td><td>1971</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1972</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1973</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1974</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1975</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1976</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1977</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1978</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1979</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1980</td><td>NS</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>HYB</td><td>1982</td><td>NS</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>INK</td><td>1969</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>INK</td><td>1982</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1965</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JCT</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td>XX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1964</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>JER</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>JER</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>KEV</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KMI</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
  </tr>
  <tr>
    <td>KAAO</td><td>1977</td><td>AR</td><td>XX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
  </tr>
  <tr>
    <td>KAAO</td><td>1978</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KAAO</td><td>1979</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KAAO</td><td>1980</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KAAO</td><td>1981</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KAAO</td><td>1982</td><td>AR</td><td>X</td><td>X</td><td></td><td></td>
    <td>KEV</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1968</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1970</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>KEV</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KEV</td><td>1983</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>KOD</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1977</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1972</td><td>HG</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KOD</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
  </tr>
  <tr>
    <td>KBL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td>
    <td>KIP</td><td>1977</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBL</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>KIP</td><td>1978</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1967</td><td>SD</td><td>X</td><td>XXX</td><td></td><td></td>
    <td>KIP</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1977</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1978</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1972</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1968</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>KIP</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KBS</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>KIP</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KIP</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td>
    <td>KON</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KMI</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KMI</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KEV</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>KMI</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>KON</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>KON</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LAH</td><td>1981</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>LON</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KON</td><td>1983</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>LEM</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KONO</td><td>1978</td><td>AR</td><td>XX</td><td>XXX</td><td></td><td></td>
    <td>LEM</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KONO</td><td>1979</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KONO</td><td>1980</td><td>AR</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td>
    <td>LEM</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KONO</td><td>1981</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LEM</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KONO</td><td>1982</td><td>AR</td><td>X</td><td></td><td></td><td></td>
    <td>LEM</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1962</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
    <td>LEM</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1969</td><td>SD</td><td>XXX</td><td>XX</td><td></td><td></td>
    <td>LEM</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KRK</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
  </tr>
  <tr>
    <td>KSH</td><td>1980</td><td>PR</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KSH</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LEM</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KSH</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>LEM</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>LOR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KSH</td><td>1983</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>LEM</td><td>1982</td><td>SD</td><td>XX</td><td>X</td><td>XXX</td><td></td>
    <td>LOR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KSH</td><td>1984</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>LEM</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>LOR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1963</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td>
    <td>LHC</td><td>1969</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1972</td><td>SD</td><td>X</td><td>X</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1974</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
  </tr>
  <tr>
    <td>KTG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LOR</td><td>1982</td><td>SD</td><td>XXX</td><td>XX</td><td>X</td><td></td>
  </tr>
  <tr>
    <td>KTG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1962</td><td>SD</td><td>XX</td><td>X</td><td>XXX</td><td></td>
  </tr>
  <tr>
    <td>KTG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LHC</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td></td><td></td>
    <td>LPA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LND</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LND</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LND</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>KTG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>LND</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1962</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>LND</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LND</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1969</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>LON</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LAH</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LON</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>LPA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>LPA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LSA</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LSA</td><td>1980</td><td>PR</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LSA</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPA</td><td>1983</td><td>SD</td><td>XXX</td><td>XX</td><td></td><td></td>
    <td>LSA</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1964</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1980</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1968</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LUB</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1971</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>X</td>
    <td>LUB</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPB</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>LUB</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>X</td><td>X</td>
    <td>LZH</td><td>1980</td><td>PR</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LZH</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>LZH</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAN</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1975</td><td>RO</td><td></td><td></td><td></td><td></td>
    <td>MAN</td><td>1977</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>LPS</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1976</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1972</td><td>HG</td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>LPS</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1977</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>MAT</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1977</td><td>AR</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1978</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1979</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1977</td><td>HG</td><td>X</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>LPS</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1980</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1965</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1981</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAT</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>LPS</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>MAIO</td><td>1982</td><td>AR</td><td>XXX</td><td></td><td></td><td></td>
    <td>MAT</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr><th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th></tr>
<tr><td>MAT</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MAT</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MAT</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MAT</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MAT</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MAT</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MBC</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MCC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MDS</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MDS</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MDS</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MDS</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MDS</td><td>1966</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MHI</td><td>1975</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MHI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MHI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MHI</td><td>1978</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MHI</td><td>1979</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNN</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNN</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNN</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNN</td><td>1965</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MNT</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1965</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1968</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1971</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSH</td><td>1975</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1973</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MSO</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>MUN</td><td>1983</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAI</td><td>1982</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>NAT</td><td>1965</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>NAT</td><td>1966</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>X</td>
    <td>NIL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>NUR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1967</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td>
    <td>NIL</td><td>1977</td><td>SD</td><td>XX</td><td>XXX</td><td>XX</td><td></td>
    <td>NUR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1968</td><td>SD</td><td>XX</td><td>XX</td><td>XXX</td><td></td>
    <td>NIL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NIL</td><td>1979</td><td>SD</td><td>XX</td><td>X</td><td>X</td><td></td>
    <td>NUR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1970</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NIL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NJ2</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NJ2</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NJ2</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1975</td><td>SD</td><td>X</td><td>XXX</td><td>XX</td><td></td>
    <td>NNA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NAT</td><td>1979</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>NNA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1966</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td>
    <td>NUR</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>NDI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>NNA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1976</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1977</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NMAO</td><td>1983</td><td>RO</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>NDI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1977</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1971</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1972</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1974</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1982</td><td>SD</td><td>XX</td><td>XXX</td><td></td><td></td>
    <td>OOGD</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NNA</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1977</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NDI</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>NOR</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>OOGD</td><td>1978</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NOR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1979</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NOR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1980</td><td>HG</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>NHA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NOR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1965</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>NOR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td>NOR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1967</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td></td>
    <td>NOR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1984</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1968</td><td>SD</td><td>X</td><td>XX</td><td>XXX</td><td></td>
    <td>NOR</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1985</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1969</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>NOR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1986</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NHA</td><td>1971</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td>NOR</td><td>1972</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td>
    <td>OOGD</td><td>1987</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1969</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1988</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1989</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>NUR</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1990</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1991</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1992</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1993</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>NIL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>NUR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>OOGD</td><td>1994</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr><td colspan="7">OGD 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OGD 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OGD 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OGD 1979 SD XXX X XXX XXX</td></tr>
  <tr><td colspan="7">OGD 1980 SD XX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1963 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1964 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1965 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1966 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1967 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1968 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1969 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1970 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1971 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1975 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1976 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1977 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1978 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1979 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1980 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1981 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OTT 1982 CA XX XXX</td></tr>
  <tr><td colspan="7">OXF 1963 SD XXX XXX X XXX</td></tr>
  <tr><td colspan="7">OXF 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">OXF 1976 SD XXX X</td></tr>
  <tr><td colspan="7">PBQ 1972 CA XXX XXX X XXX</td></tr>
  <tr><td colspan="7">PBQ 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PBQ 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1962 SD XX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1963 SD X XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1981 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PDA 1982 SD X X XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1964 SD X XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1974 SD XXX X X</td></tr>
  <tr><td colspan="7">PEL 1975 SD X</td></tr>
  <tr><td colspan="7">PEL 1976 SD X XXX X</td></tr>
  <tr><td colspan="7">PEL 1977 SD X XXX X</td></tr>
  <tr><td colspan="7">PEL 1978 SD XXX XXX X XXX</td></tr>
  <tr><td colspan="7">PEL 1979 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1980 SD X X XXX X X</td></tr>
  <tr><td colspan="7">PEL 1981 SD X XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1982 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PEL 1983 SD X</td></tr>
  <tr><td colspan="7">PGC 1978 CA XXX XXX XXX</td></tr>
  <tr><td colspan="7">PGC 1979 CA XXX XXX XXX</td></tr>
  <tr><td colspan="7">PGC 1980 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PGC 1981 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PGC 1982 CA XX XXX</td></tr>
  <tr><td colspan="7">PHC 1963 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1964 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1965 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1966 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1967 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1968 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1969 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1970 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1971 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1975 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1976 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1977 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1978 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1979 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1980 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1981 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PHC 1982 CA XX XXX</td></tr>
  <tr><td colspan="7">PLM 1961 SD X</td></tr>
  <tr><td colspan="7">PLM 1962 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PLM 1963 SD X</td></tr>
  <tr><td colspan="7">PMG 1962 SD X XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1963 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1964 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1965 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1966 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1967 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1968 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1969 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1970 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1971 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1972 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1973 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1974 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1975 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1976 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1977 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1978 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1979 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1980 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1981 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PMG 1982 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1962 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1963 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1964 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1965 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1966 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1967 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">PNT 1968 CA XXX XXX XXX XXX</td></tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>PNT</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td>
    <td>QUE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td>
    <td>QUE</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PRE</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PNT</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1981</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>POC</td><td>1972</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td>
    <td>QUI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUI</td><td>1976</td><td>SD</td><td>XXX</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>POO</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QZN</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QZN</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QZN</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>PTO</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QZN</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1962</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>POO</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QCC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>PRE</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>QUE</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>RAB</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr><th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th></tr>
<tr><td>RAB</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAB</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAB</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAB</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAB</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td></tr>
<tr><td>RAR</td><td>1965</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1967</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1970</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RAR</td><td>1981</td><td>X</td><td></td><td></td><td></td><td></td></tr>
<tr><td>RCD</td><td>1961</td><td>SD</td><td></td><td></td><td></td><td>X</td></tr>
<tr><td>RCD</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td></tr>
<tr><td>RCD</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1967</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>RCD</td><td>1969</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>RCD</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1971</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>RCD</td><td>1972</td><td>SD</td><td>X</td><td>XXX</td><td>XX</td><td></td></tr>
<tr><td>RCD</td><td>1973</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td></tr>
<tr><td>RCD</td><td>1974</td><td>SD</td><td>X</td><td>XXX</td><td>XX</td><td></td></tr>
<tr><td>RCD</td><td>1978</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>RCD</td><td>1979</td><td>SD</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1980</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RCD</td><td>1981</td><td>SD</td><td>X</td><td>X</td><td>X</td><td>X</td></tr>
<tr><td>RCD</td><td>1982</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>RES</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RES</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1962</td><td>SD</td><td></td><td></td><td></td><td>X</td></tr>
<tr><td>RIV</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>RIV</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SBA</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td></td><td></td></tr>
<tr><td>SCB</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1969</td><td>CA</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCB</td><td>1982</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1961</td><td>SD</td><td></td><td></td><td></td><td>X</td></tr>
<tr><td>SCP</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr>
<th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
</tr>
<tr><td>SCP</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1981</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SCP</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1967</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SDB</td><td>1975</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1973</td><td>SD</td><td>X</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1975</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SEO</td><td>1983</td><td>SD</td><td>XXX</td><td>X</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1966</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SES</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SFA</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1962</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHF</td><td>1962</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHF</td><td>1963</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHF</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHF</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1963</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHI</td><td>1979</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1978</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1982</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SH10</td><td>1983</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1966</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1970</td><td>SD</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<html>
<table>
<tr><th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th></tr>
<tr><td>SHK</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHK</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>SHL</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td></tr>
<tr><td>SHL</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SHL</td><td>1982</td><td>SD</td><td>XXX</td><td>X</td><td></td><td></td></tr>
<tr><td>SIC</td><td>1966</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1967</td><td>CA</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SIC</td><td>1973</td><td>CA</td><td>XXX</td><td>X</td><td></td><td></td></tr>
<tr><td>SJG</td><td>1964</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
<tr><td>SJG</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SJG</td><td>1983</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1965</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
<tr><td>SNG</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XX</td></tr>
<tr><td>SNG</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNG</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>X</td></tr>
<tr><td>SNG</td><td>1983</td><td>SD</td><td>XX</td><td></td><td></td><td></td></tr>
<tr><td>SNZO</td><td>1976</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1977</td><td>RO</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1978</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1979</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1980</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1981</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1982</td><td>RO</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SNZO</td><td>1983</td><td>RO</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>SOM</td><td>1964</td><td>SD</td><td></td><td></td><td></td><td></td></tr>
<tr><td>SOM</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SOM</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td></tr>
<tr><td>SOM</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SOM</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XX</td><td>XX</td></tr>
<tr><td>SOM</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SOM</td><td>1974</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td></tr>
<tr><td>SOM</td><td>1975</td><td>SD</td><td>X</td><td>XX</td><td></td><td></td></tr>
<tr><td>SOM</td><td>1978</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>SPA</td><td>1963</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1964</td><td>SD</td><td>XX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SPA</td><td>1983</td><td>SD</td><td>X</td><td></td><td></td><td></td></tr>
<tr><td>SSE</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SSE</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SSE</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>SSE</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1964</td><td>CA</td><td>X</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
<tr><td>STJ</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td></tr>
</table>
</html>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr><td colspan="14">STJ 1971 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1975 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1976 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1977 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1978 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1979 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1980 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1981 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STJ 1982 CA XX XXX</td></tr>
  <tr><td colspan="14">STU 1962 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1968 SD XXX X XX</td></tr>
  <tr><td colspan="14">STU 1969 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1970 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1971 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1972 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1973 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1974 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1975 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1976 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1977 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1978 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1979 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1980 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1981 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">STU 1982 SD XXX XXX XX XXX</td></tr>
  <tr><td colspan="14">STU 1983 SD XXX XX</td></tr>
  <tr><td colspan="14">SUD 1968 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1969 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1970 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1971 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">SUD 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1965 SD XX XXX</td></tr>
  <tr><td colspan="14">TAB 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1967 SD XXX XX XXX</td></tr>
  <tr><td colspan="14">TAB 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1971 SD XXX XXX XX X</td></tr>
  <tr><td colspan="14">TAB 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAB 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1976 RO XX XXX</td></tr>
  <tr><td colspan="14">TAT 1977 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1978 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1979 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1980 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1981 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1982 RO XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAT 1983 RO XX</td></tr>
  <tr><td colspan="14">TAU 1962 SD XX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1963 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1964 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1965 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1966 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1967 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1968 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1969 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1970 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1971 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1972 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1973 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1974 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1975 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1976 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1977 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1978 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TAU 1979 SD XXX XXX XXX</td></tr>
  <tr><td colspan="14">TIA 1979 PR XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TIA 1980 PR XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TIA 1981 PR XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TIA 1982 PR XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1971 HG XXX XXX XX XXX</td></tr>
  <tr><td colspan="14">TLO 1972 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1973 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1974 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1975 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1976 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1977 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1978 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1979 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1980 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TLO 1981 HG XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1962 SD XXX XXX X</td></tr>
  <tr><td colspan="14">TOL 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1968 SD XXX</td></tr>
  <tr><td colspan="14">TOL 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TOL 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1981 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="14">TRI 1982 SD XXX XX</td></tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr><td colspan="7">TRN 1962 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1981 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1982 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TRN 1983 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1962 SD X</td></tr>
  <tr><td colspan="7">TUC 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUC 1981 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1970 NS X</td></tr>
  <tr><td colspan="7">TUL 1971 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1972 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1973 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1974 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1975 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1976 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1977 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1978 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1979 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1980 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1981 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1982 NS XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">TUL 1983 NS XXX X</td></tr>
  <tr><td colspan="7">UME 1962 SD XXX</td></tr>
  <tr><td colspan="7">UME 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UME 1981 SD X</td></tr>
  <tr><td colspan="7">UNB 1971 CA XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNB 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNB 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNB 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNM 1967 SD X XXX XXX</td></tr>
  <tr><td colspan="7">UNM 1968 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNM 1969 SD XXX XXX XXX</td></tr>
  <tr><td colspan="7">UNM 1970 SD XXX XXX XXX X</td></tr>
  <tr><td colspan="7">VAL 1962 SD XXX</td></tr>
  <tr><td colspan="7">VAL 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1965 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1979 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1980 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1981 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1982 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VAL 1983 SD XXX</td></tr>
  <tr><td colspan="7">VIC 1962 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1963 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1964 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1965 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1966 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1967 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1968 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1969 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1970 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1971 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1972 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1973 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1974 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1975 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1976 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1977 CA XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">VIC 1978 CA XXX</td></tr>
  <tr><td colspan="7">WEL 1962 SD XX X X</td></tr>
  <tr><td colspan="7">WEL 1963 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1964 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1965 SD X X XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1966 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1967 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1968 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1969 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1970 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1971 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1972 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1973 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1974 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1975 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1976 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1977 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1978 SD XXX XXX XXX XXX</td></tr>
  <tr><td colspan="7">WEL 1979 SD XXX XXX XXX XXX</td></tr>
</table>
Table 6. Inventory of analog seismograms (Cont.)

<table>
  <tr>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
    <th>STA</th><th>YEAR</th><th>NET</th><th>JFM</th><th>AMJ</th><th>JAS</th><th>OND</th>
  </tr>
  <tr>
    <td>WEL</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>WIN</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td>ZOBO</td><td>1982</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
  </tr>
  <tr>
    <td>WES</td><td>1961</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td>
    <td>ZOBO</td><td>1983</td><td>AR</td><td>X</td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1962</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>X</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1963</td><td>SD</td><td>XXX</td><td>X</td><td>X</td><td></td>
    <td>WIN</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>X</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WIN</td><td>1982</td><td>SD</td><td>X</td><td></td><td></td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WMQ</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WMQ</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>WMQ</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>XAN</td><td>1980</td><td>PR</td><td>XX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>XAN</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1974</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>XAN</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1975</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1964</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1976</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1965</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1977</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1966</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1978</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1967</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1979</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1968</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1980</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1969</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1981</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1970</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1982</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WES</td><td>1983</td><td>SD</td><td>XX</td><td>X</td><td></td><td></td>
    <td>YKC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1971</td><td>CA</td><td>XXX</td><td>XXX</td><td>X</td><td></td>
    <td>YKC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1972</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1974</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1973</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1975</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1976</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1977</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1978</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHN</td><td>1979</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1979</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHN</td><td>1980</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1980</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHN</td><td>1981</td><td>PR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>YKC</td><td>1981</td><td>CA</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WHN</td><td>1982</td><td>PR</td><td>XXX</td><td>XXX</td><td></td><td></td>
    <td>YKC</td><td>1982</td><td>CA</td><td>XX</td><td>XXX</td><td></td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1962</td><td>SD</td><td>XX</td><td></td><td></td><td></td>
    <td>ZLP</td><td>1972</td><td>HG</td><td></td><td></td><td></td><td>X</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1963</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZLP</td><td>1973</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1964</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZLP</td><td>1974</td><td>HG</td><td>XXX</td><td>XX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1965</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZLP</td><td>1975</td><td>HG</td><td>XXX</td><td>XXX</td><td>XXX</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1966</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZLP</td><td>1976</td><td>HG</td><td>XXX</td><td>XXX</td><td>XX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1967</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1976</td><td>AR</td><td></td><td></td><td>X</td><td>XXX</td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1968</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1977</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1969</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1978</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1970</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1979</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1971</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1980</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1972</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td>ZOBO</td><td>1981</td><td>AR</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
  <tr>
    <td>WIN</td><td>1973</td><td>SD</td><td>XXX</td><td>XXX</td><td>XXX</td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
    <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
  </tr>
</table>
Table 7. International Data Exchange (IDE) Events

<table>
  <tr>
    <th>Date<br>yr mo da</th>
    <th>Time (UT)<br>h m s</th>
    <th>Geographic area</th>
    <th>Magnitude</th>
  </tr>
  <tr><td>74 05 10</td><td>19 25 15.0</td><td>Szechwan Province, People's Republic of China....</td><td>6.8</td></tr>
  <tr><td>74 10 03</td><td>14 21 29.1</td><td>Near cost of Peru.............................................</td><td>7.6</td></tr>
  <tr><td>74 10 08</td><td>09 50 58.1</td><td>Leeward Islands.............................................</td><td>7.5</td></tr>
  <tr><td>75 02 02</td><td>08 43 39.1</td><td>Near Islands, Aleutian Islands.........................</td><td>7.6</td></tr>
  <tr><td>75 05 10</td><td>14 27 38.7</td><td>Southern Chile.............................................</td><td>7.8</td></tr>
  <tr><td>75 05 26</td><td>09 11 51.5</td><td>North Atlantic Ocean.....................................</td><td>8.0</td></tr>
  <tr><td>75 07 20</td><td>14 37 35.8</td><td>Solomon Islands...........................................</td><td>8.0</td></tr>
  <tr><td>75 10 11</td><td>14 35 15.0</td><td>Tonga Islands region.....................................</td><td>7.5</td></tr>
  <tr><td>75 11 29</td><td>14 47 40.1</td><td>Hawaii....................................................</td><td>7.1</td></tr>
  <tr><td>75 12 26</td><td>15 56 38.7</td><td>Samoa Islands.............................................</td><td>7.8</td></tr>
  <tr><td>76 01 14</td><td>15 56 54.5</td><td>Kermadec Islands........................................</td><td>7.8</td></tr>
  <tr><td>76 01 14</td><td>16 47 28.6</td><td>Kermadec Islands........................................</td><td>8.0</td></tr>
  <tr><td>76 02 04</td><td>09 01 46.0</td><td>Guatemala................................................</td><td>7.5</td></tr>
  <tr><td>76 05 06</td><td>20 00 11.6</td><td>Northeastern Italy......................................</td><td>6.5</td></tr>
  <tr><td>76 07 27</td><td>19 42 56.2</td><td>Hopeh Province, People's Republic of China........</td><td>8.0</td></tr>
  <tr><td>76 08 16</td><td>16 11 07.2</td><td>Moro Gulf, Philippine Islands..........................</td><td>8.0</td></tr>
  <tr><td>76 11 24</td><td>12 22 18.1</td><td>Eastern Turkey..........................................</td><td>7.5</td></tr>
  <tr><td>77 03 04</td><td>19 21 51.1</td><td>Rumania...................................................</td><td>7.2</td></tr>
  <tr><td>77 04 02</td><td>07 15 25.0</td><td>Tonga Islands............................................</td><td>7.5</td></tr>
  <tr><td>77 04 20</td><td>23 42 50.5</td><td>Solomon Islands..........................................</td><td>7.5</td></tr>
  <tr><td>77 04 20</td><td>23 49 13.1</td><td>Solomon Islands..........................................</td><td>7.5</td></tr>
  <tr><td>77 04 21</td><td>04 24 09.6</td><td>Solomon Islands..........................................</td><td>7.8</td></tr>
  <tr><td>78 03 24</td><td>00 42 38.1</td><td>South of Bermuda........................................</td><td>6.0</td></tr>
  <tr><td>78 06 12</td><td>08 14 26.8</td><td>Near east coast of Honshu, Japan.....................</td><td>7.5</td></tr>
  <tr><td>78 09 16</td><td>15 35 56.1</td><td>Iran.....................................................</td><td>7.7</td></tr>
  <tr><td>78 11 04</td><td>22 29 21.6</td><td>Solomon Islands..........................................</td><td>7.0</td></tr>
  <tr><td>78 11 05</td><td>22 02 07.8</td><td>Solomon Islands..........................................</td><td>7.5</td></tr>
  <tr><td>78 11 29</td><td>19 52 51.0</td><td>Oaxaca, Mexico.........................................</td><td>7.8</td></tr>
  <tr><td>79 01 16</td><td>09 50 11.6</td><td>Eastern Iran.............................................</td><td>6.7</td></tr>
  <tr><td>79 02 28</td><td>21 27 05.2</td><td>Southeastern Alaska....................................</td><td>7.7</td></tr>
  <tr><td>79 03 14</td><td>11 07 13.7</td><td>Guerrero, Mexico.......................................</td><td>7.7</td></tr>
  <tr><td>79 04 15</td><td>06 19 49.7</td><td>Yugoslavia...............................................</td><td>7.0</td></tr>
  <tr><td>79 09 12</td><td>05 17 55.7</td><td>West Irian..............................................</td><td>7.9</td></tr>
  <tr><td>79 10 15</td><td>23 16 55.1</td><td>California-Mexican border...............................</td><td>6.8</td></tr>
  <tr><td>79 12 12</td><td>07 59 04.3</td><td>Coast of Ecuador........................................</td><td>7.9</td></tr>
  <tr><td>80 07 08</td><td>23 19 19.4</td><td>Santa Cruz Islands......................................</td><td>7.5</td></tr>
  <tr><td>80 07 17</td><td>19 42 22.5</td><td>Santa Cruz Islands......................................</td><td>7.8</td></tr>
  <tr><td>80 10 10</td><td>12 25 23.7</td><td>Northern Algeria........................................</td><td>7.3</td></tr>
  <tr><td>80 11 23</td><td>18 34 53.3</td><td>Southern Italy..........................................</td><td>6.8</td></tr>
  <tr><td>81 05 25</td><td>05 25 10.8</td><td>Off west coast of South Island, New Zealand........</td><td>7.6</td></tr>
  <tr><td>81 09 01</td><td>09 29 32.0</td><td>Tonga Islands...........................................</td><td>7.6</td></tr>
  <tr><td>82 01 09</td><td>12 53 51.8</td><td>New Brunswick...........................................</td><td>5.7</td></tr>
  <tr><td>82 12 19</td><td>17 43 55.9</td><td>South of Tonga Islands................................</td><td>7.7</td></tr>
  <tr><td>83 03 18</td><td>09 05 45.3</td><td>New Ireland region.....................................</td><td>7.9</td></tr>
  <tr><td>83 05 26</td><td>03 00 00.7</td><td>Near west coast of Honshu, Japan.....................</td><td>7.8</td></tr>
</table>
Table 8. Stations in International Deployment of Accelerometers Project

<table>
  <tr>
    <th>Station Code</th>
    <th>Station</th>
    <th>Date opened<br>yr mo</th>
    <th>Station Code</th>
    <th>Station</th>
    <th>Date opened<br>yr mo</th>
  </tr>
  <tr>
    <td>ALE</td>
    <td>Alert, NWT, Canada</td>
    <td>82 09</td>
    <td>KIP</td>
    <td>Kipapa Hawaii, USA</td>
    <td>77 09</td>
  </tr>
  <tr>
    <td>BDF</td>
    <td>Brasilia, Brazil</td>
    <td>77 04</td>
    <td>KMI</td>
    <td>Kunming, People's Rep. of China</td>
    <td>80 10</td>
  </tr>
  <tr>
    <td>BJI</td>
    <td>Beijing, People's Rep. of China</td>
    <td>82 10</td>
    <td>NNA</td>
    <td>Nana, Peru</td>
    <td>75 06</td>
  </tr>
  <tr>
    <td>CAN</td>
    <td>Canberra, Australia</td>
    <td>75 01 *(78 04)</td>
    <td>PFO</td>
    <td>Pinon Flat, Calif., USA</td>
    <td>76 02</td>
  </tr>
  <tr>
    <td>CMO</td>
    <td>College, Alaska, USA</td>
    <td>77 07</td>
    <td>RAR</td>
    <td>Rarotonga, Cook Islands</td>
    <td>76 10</td>
  </tr>
  <tr>
    <td>EIC</td>
    <td>Easter Island, Chile</td>
    <td>78 08</td>
    <td>SEY</td>
    <td>Mahe, Seychelles</td>
    <td>80 01</td>
  </tr>
  <tr>
    <td>ERM</td>
    <td>Erimo, Japan</td>
    <td>80 08</td>
    <td>SJG</td>
    <td>San Juan, Puerto Rico</td>
    <td>82 06</td>
  </tr>
  <tr>
    <td>ESK</td>
    <td>Eskdalemuir, Scotland, UK</td>
    <td>78 09</td>
    <td>SPA</td>
    <td>South Pole, Antarctica</td>
    <td>79 01</td>
  </tr>
  <tr>
    <td>GAR</td>
    <td>Garm, USSR</td>
    <td>76 09</td>
    <td>SSB</td>
    <td>Saint-Sauveur, France</td>
    <td>81 09</td>
  </tr>
  <tr>
    <td>GUA</td>
    <td>Guam, Mariana Is.</td>
    <td>79 07</td>
    <td>SUR</td>
    <td>Sutherland, Rep. of South Africa</td>
    <td>75 12</td>
  </tr>
  <tr>
    <td>HAL</td>
    <td>Halifax, NS, Canada</td>
    <td>76 04</td>
    <td>TWO</td>
    <td>Adelaide, Australia</td>
    <td>78 04</td>
  </tr>
</table>

*Closed April 78.
Table 9.--Stations for which historical seismograms are available

<table>
  <tr>
    <th>Station</th>
    <th>Time interval</th>
    <th>Station</th>
    <th>Time interval</th>
  </tr>
  <tr>
    <td colspan="4">All available records copied:</td>
  </tr>
  <tr>
    <td>Burlington, Vermont------</td>
    <td>1932-57</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>College, Alaska----------</td>
    <td>1935-63</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Honolulu, Hawaii--------</td>
    <td>1903-63</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Mt. Hamilton, California-</td>
    <td>1911-62</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Pasadena, California-----</td>
    <td>1923-45*</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>St. Louis, Missouri------</td>
    <td>1910-43</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Tucson, Arizona----------</td>
    <td>1907-60</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Vieques/San Juan, PR-----</td>
    <td>1903-63</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Hongo, Japan-------------</td>
    <td>1899-1940</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td colspan="4">Selected events only copied:</td>
  </tr>
  <tr>
    <td>Bermuda------------------</td>
    <td>1939-50</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Bozeman, Montana---------</td>
    <td>1931-55</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Columbia, South Carolina-</td>
    <td>1931-61</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Lincoln, Nebraska--------</td>
    <td>1940-55</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Rapid City, South Dakota-</td>
    <td>1943-55</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Regis College, Colorado--</td>
    <td>1909-46</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Salt Lake City, Utah-----</td>
    <td>1939-55</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Sitka, Alaska------------</td>
    <td>1904-61</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>Ukiah, California--------</td>
    <td>1931-55</td>
    <td></td>
    <td></td>
  </tr>
</table>

*Filming is continuing for later years.
