Surface creep on the North Anatolian Fault at Ismetpasa, Turkey, 1944-2016

Bilham, Roger; Ozener, H.; Mencin, D.; Dogru, A.; Ergintav, S.; Cakir, Z.; Aytun, A.; Aktug, B.; Yilmaz, O.; Johnson, W.; Mattioli, G.

doi:10.1002/2016jb013394

i

Surface creep on the North Anatolian Fault at Ismetpasa, Turkey, 1944-2016

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2016
By Bilham, Roger ; Ozener, H. ; Mencin, D. ; ...

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Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

Bilham, Roger ; Ozener, H. ; Mencin, D. ; Dogru, A. ; Ergintav, S. ; Cakir, Z. ; Aytun, A. ; Aktug, B. ; Yilmaz, O. ; Johnson, W. ; Mattioli, G.
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

We reevaluate the 72 year history of surface slip on the North Anatolian Fault at Ismetpasa since theMw= 7.4 1944 Bolu/Gerede earthquake. A revised analysis of published observations suggests that days after the earthquake the fault had been offset by 3.7 m and 6 years later by an additional 0.74 m. Creep wasﬁrst recognized on the fault in 1969 as a 0.13 m offset of a wall constructed in 1957 that now (2016) has been offset by 0.52 m. A carbon rod creep meter operated across the fault in the past 2 years con ﬁrms results from an invar wire creep meter operated 1982 –1991 that surface slip is episodic. Months of fault inactivity are interrupted by slow slip ( ≤10μm/d) or multiple creep events with cumulative amplitudes of 2 –10 mm, durations of several weeks, and with slip rates brie ﬂy exceeding >2.5 mm/h. Creep events accommodate
Keywords:

Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science
Source:

Journal of Geophysical Research: Solid Earth, 121(10), 7409-7431
DOI:

https://doi.org/10.1002/2016jb013394
ISSN:

2169-9313
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
Rights Information:

CC BY-NC-ND
Compliance:

Library
Main Document Checksum:

urn:sha256:c04db1904d5887f08815f479fe0463667b93d9f666e06346a10ae1be2eaf086b
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https://repository.library.noaa.gov/view/noaa/52632/noaa_52632_DS1.pdf
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[PDF - 4.78 MB ]

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