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DOI: 10.1002/2015GL063335
论文题名:
Rupture history of 2014 Mw 6.0 South Napa earthquake inferred from near-fault strong motion data and its impact to the practice of ground strong motion prediction
作者: Ji C.; Archuleta R.J.; Twardzik C.
刊名: Geophysical Research Letters
ISSN: 0094-8805
EISSN: 1944-8536
出版年: 2015
卷: 42, 期:7
起始页码: 2149
结束页码: 2156
语种: 英语
英文关键词: 2014 South Napa earthquake ; 4 Hz seismic signals ; aggressive source parameterization ; seismic hazard analysis ; variation of rise time
Scopus关键词: Faulting ; Hazards ; Seismic response ; Seismology ; Ground accelerations ; Risetimes ; Seismic hazard analysis ; Seismic signals ; Strong motion datum ; Strong motion predictions ; Strong motion records ; Transverse components ; Earthquakes ; acceleration ; earthquake epicenter ; earthquake event ; fault displacement ; ground motion ; rupture ; wave propagation
英文摘要: The spatiotemporal rupture history of the 2014 South Napa earthquake is constrained using near-fault strong motion records. An aggressive source parameterization with 1372 subfaults is adopted to match the signals in the transverse components up to 4 Hz. The result reveals that the rupture of the Napa earthquake initiated at a depth of 9.84 km and propagated mainly to north-northwest (NNW) and updip on a 13 km long fault patch. A gradual increase in average rise time when the rupture propagates to shallower depth is observed. However, it is the rupture of a small (Mw 4.9), isolated, and high stress drop fault patch that excited the largest ground acceleration at stations south of the epicenter. Such fine-scale rupture heterogeneity shall be considered during seismic hazard analysis. ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928702160&doi=10.1002%2f2015GL063335&partnerID=40&md5=8d6fe5f3a7c276d80fc94b318f38964a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8421
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Earth Research Institute, University of California, Santa Barbara, CA, United States

Recommended Citation:
Ji C.,Archuleta R.J.,Twardzik C.. Rupture history of 2014 Mw 6.0 South Napa earthquake inferred from near-fault strong motion data and its impact to the practice of ground strong motion prediction[J]. Geophysical Research Letters,2015-01-01,42(7).
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