| DOI: | 10.1002/2013GL058391
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| 论文题名: | Earthquake magnitude scaling using seismogeodetic data |
| 作者: | Crowell B.W.; Melgar D.; Bock Y.; Haase J.S.; Geng J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8305
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| EISSN: | 1944-8036
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| 出版年: | 2013
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| 卷: | 40, 期:23 | | 起始页码: | 6089
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| 结束页码: | 6094
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| 语种: | 英语
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| 英文关键词: | earthquake early warning
; scaling relationships
; seismogeodesy
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| Scopus关键词: | Co-seismic displacement
; Earthquake early warning
; Earthquake magnitudes
; Low-frequency components
; Magnitude estimation
; Peak ground displacement
; Scaling relationships
; seismogeodesy
; Estimation
; Earthquakes
; accelerometer
; amplitude
; data set
; earthquake magnitude
; earthquake rupture
; geodetic datum
; GPS
; ground conditions
; waveform analysis
; California
; Japan
; United States
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| 英文摘要: | The combination of GPS and strong-motion data to estimate seismogeodetic waveforms creates a data set that is sensitive to the entire spectrum of ground displacement and the full extent of coseismic slip. In this study we derive earthquake magnitude scaling relationships using seismogeodetic observations of either P wave amplitude or peak ground displacements from five earthquakes in Japan and California ranging in magnitude from 5.3 to 9.0. The addition of the low-frequency component allows rapid distinction of earthquake size for large magnitude events with high precision, unlike accelerometer data that saturate for earthquakes greater than M 7 to 8, and is available well before the coseismic displacements are emplaced. These results, though based on a limited seismogeodetic data set, support earlier studies that propose it may be possible to estimate the final magnitude of an earthquake well before the rupture is complete. Key Points Magnitude estimation from seismogeodetic Pd scaling does not saturate Earthquake size may be predictable from the initial rupture PGD provides robust constraints on rupture duration and size ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889863709&doi=10.1002%2f2013GL058391&partnerID=40&md5=4438117d41022066cf233da0240c7bd8
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5569
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Cecil H. and Ida M. Green Department of Earth and Space Sciences, University of Washington, 4000 15th Avenue NE, Seattle, WA 98195-1310, United States
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| Recommended Citation: | |
Crowell B.W.,Melgar D.,Bock Y.,et al. Earthquake magnitude scaling using seismogeodetic data[J]. Geophysical Research Letters,2013-01-01,40(23).
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