Real‐Time Seismogeodetic Earthquake Magnitude Estimates for Local Tsunami Warnings

Golriz, Dorian; Hirshorn, Barry; Bock, Yehuda; Weinstein, Stuart; Weiss, Jonathan R.

doi:10.1029/2022jb025555

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Real‐Time Seismogeodetic Earthquake Magnitude Estimates for Local Tsunami Warnings

2023
By Golriz, Dorian ; Hirshorn, Barry ; Bock, Yehuda ; ...
Source: Journal of Geophysical Research: Solid Earth, 128(1)

[PDF-1.87 MB]

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Journal Title:

Journal of Geophysical Research: Solid Earth
Personal Author:

Golriz, Dorian ; Hirshorn, Barry ; Bock, Yehuda ; Weinstein, Stuart ; Weiss, Jonathan R.

Golriz, Dorian ; Hirshorn, Barry ; Bock, Yehuda ; Weinstein, Stuart ; Weiss, Jonathan R. Less -
NOAA Program & Office:

NWS (National Weather Service)
Description:

We estimate a seismogeodetic earthquake moment magnitude using unclipped, broadband velocity and displacement waveforms from collocated Global Navigation Satellite Systems and seismic stations located within 800 km epicentral distance for nine 7.2 < < 9.1 earthquakes. We consider the vertical component of seismogeodetic displacement as an approximate source time function and integrate the associated time series to obtain the seismic moment. By continuing to integrate vertical displacement beyond the initial P-waves, we obtain rapid estimates of
Keywords:

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

Journal of Geophysical Research: Solid Earth, 128(1)
DOI:

https://doi.org/10.1029/2022jb025555
ISSN:

2169-9313;2169-9356;
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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urn:sha256:81896b6529e231b6250bc57ea2454c4d39e13a9873dbd1e9e7991ee6ddeecf89
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https://repository.library.noaa.gov/view/noaa/53261/noaa_53261_DS1.pdf
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