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Post-seismic velocity changes along the 2008 M7.9 Wenchuan earthquake rupture zone revealed by S coda of repeating events

文献类型：期刊论文

作者Li, Le1; Niu, Fenglin2,3,4; Chen, Qi-Fu5; Su, Jinrong6; He, Jiabin7
刊名GEOPHYSICAL JOURNAL INTERNATIONAL
出版日期2017-02-01
卷号208期号:2页码:1237-1249
关键词Interferometry Earthquake Source Observations Seismicity And Tectonics Coda Waves Wave Scattering And Diffraction Earthquake Interaction Forecasting And Prediction
ISSN号0956-540X
DOI10.1093/gji/ggw454
文献子类Article
英文摘要We investigated post-seismic velocity changes within the fault zone of the 2008 M7.9 Wenchuan earthquake using coda wave data of repeating small earthquakes. We employed template matching and grid search methods to identify well-defined repeating earthquakes in order to minimize artefacts induced by variations in source location. We identified a total of 12 isolated patches in the fault zone that ruptured more than twice in a 1 yr period after the M7.9 earthquake. We applied the coda wave interferometry technique to the waveform data of the 34 identified repeating earthquakes to estimate velocity changes between the first and subsequent events in each cluster. We found that major post-seismic velocity changes occurred in the southwestern part of the rupture area, where the main rupture was initiated and characterized by thrust motion, while the Beichuan area in the northeastern part of the rupture zone appears to experience very little post-seismic velocity changes.
WOS关键词STRONG GROUND MOTION ; SEISMIC VELOCITY ; TEMPORAL-CHANGES ; CALAVERAS FAULT ; PARKFIELD ; NOISE ; CALIFORNIA ; MIGRATION ; CHINA
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000396817600039
出版者OXFORD UNIV PRESS
资助机构NSFC(41474031 ; CEA(2015IES0407 ; NSF(1251667) ; 41274099 ; 2015IES010203) ; 41130316) ; NSFC(41474031 ; CEA(2015IES0407 ; NSF(1251667) ; 41274099 ; 2015IES010203) ; 41130316) ; NSFC(41474031 ; CEA(2015IES0407 ; NSF(1251667) ; 41274099 ; 2015IES010203) ; 41130316) ; NSFC(41474031 ; CEA(2015IES0407 ; NSF(1251667) ; 41274099 ; 2015IES010203) ; 41130316)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53023]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Niu, Fenglin
作者单位1.China Earthquake Adm, Inst Earthquake Sci, Key Lab Earthquake Predict, Beijing, Peoples R China
2.China Univ Petr, State Key Lab Petr Resource & Prospecting, Beijing, Peoples R China
3.China Univ Petr, Unconvent Nat Gas Inst, Beijing, Peoples R China
4.Rice Univ, Dept Earth Sci, Houston, TX USA
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
6.Earthquake Adm Sichuan Prov, Chengdu, Peoples R China
7.Earthquake Adm Yunnan Prov, Kunming, Peoples R China
推荐引用方式
GB/T 7714		 Li, Le,Niu, Fenglin,Chen, Qi-Fu,et al. Post-seismic velocity changes along the 2008 M7.9 Wenchuan earthquake rupture zone revealed by S coda of repeating events[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2017,208(2):1237-1249.
APA Li, Le,Niu, Fenglin,Chen, Qi-Fu,Su, Jinrong,&He, Jiabin.(2017).Post-seismic velocity changes along the 2008 M7.9 Wenchuan earthquake rupture zone revealed by S coda of repeating events.GEOPHYSICAL JOURNAL INTERNATIONAL,208(2),1237-1249.
MLA Li, Le,et al."Post-seismic velocity changes along the 2008 M7.9 Wenchuan earthquake rupture zone revealed by S coda of repeating events".GEOPHYSICAL JOURNAL INTERNATIONAL 208.2(2017):1237-1249.

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来源：地质与地球物理研究所

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