| DOI: | 10.1002/2013GL059051
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| 论文题名: | Triggering of repeating earthquakes in central California |
| 作者: | Wu C.; Gomberg J.; Ben-Naim E.; Johnson P.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10316
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| EISSN: | 1944-10047
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| 出版年: | 2014
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| 卷: | 41, 期:5 | | 起始页码: | 1499
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| 结束页码: | 1505
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| 语种: | 英语
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| 英文关键词: | central California
; dynamic triggering
; earthquake cycle
; repeating earthquakes
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| Scopus关键词: | Earth sciences
; Geophysics
; California
; Dynamic triggering
; Earthquake cycles
; Earthquake occurrences
; Monte Carlo approach
; Recurrence intervals
; Repeating earthquake
; Teleseismic earthquakes
; Earthquakes
; amplitude
; deformation
; dynamic analysis
; earthquake
; seismic survey
; seismic wave
; seismic zone
; tectonic setting
; teleseismic wave
; California
; United States
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| 英文摘要: | Dynamic stresses carried by transient seismic waves have been found capable of triggering earthquakes instantly in various tectonic settings. Delayed triggering may be even more common, but the mechanisms are not well understood. Catalogs of repeating earthquakes, earthquakes that recur repeatedly at the same location, provide ideal data sets to test the effects of transient dynamic perturbations on the timing of earthquake occurrence. Here we employ a catalog of 165 families containing ~2500 total repeating earthquakes to test whether dynamic perturbations from local, regional, and teleseismic earthquakes change recurrence intervals. The distance to the earthquake generating the perturbing waves is a proxy for the relative potential contributions of static and dynamic deformations, because static deformations decay more rapidly with distance. Clear changes followed the nearby 2004 Mw6 Parkfield earthquake, so we study only repeaters prior to its origin time. We apply a Monte Carlo approach to compare the observed number of shortened recurrence intervals following dynamic perturbations with the distribution of this number estimated for randomized perturbation times. We examine the comparison for a series of dynamic stress peak amplitude and distance thresholds. The results suggest a weak correlation between dynamic perturbations in excess of ~20 kPa and shortened recurrence intervals, for both nearby and remote perturbations. Key Points We found weak correlation of perturbations and shortened recurrences The weak correlation exists for perturbations > ~20 KPa The weak correlation exists for both nearby and remote perturbations ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895776329&doi=10.1002%2f2013GL059051&partnerID=40&md5=83abdc3058f90783e75c2f8806bd33c5
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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/7580
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Geophysics Group, Los Alamos National Laboratory, Los Alamos NM, United States
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| Recommended Citation: | |
Wu C.,Gomberg J.,Ben-Naim E.,et al. Triggering of repeating earthquakes in central California[J]. Geophysical Research Letters,2014-01-01,41(5).
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