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Mechanism of the Coseismic Change of Volumetric Strain in the Far Field of Earthquakes

文献类型：期刊论文

作者Zhang, Yan1,2; Wang, Chi-yuen3; Fu, Li-yun2; Yan, Rui4; Chen, Xuezhong5
刊名BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
出版日期2017-02-01
卷号107期号:1页码:475-481
ISSN号0037-1106
DOI10.1785/0120160253
文献子类Article
英文摘要Coseismic strain is important for understanding the crustal response to earthquakes. Several studies showed a large discrepancy between the measured coseismic change of volumetric strain in the far field and that which was predicted from the theoretical static strain, yet the underlying mechanism for this discrepancy is unknown. Here, we compare the tidal response of the volumetric strain with that of the groundwater level documented in a well located in northeastern China before and after three distant great earthquakes. The phase of water-level fluctuations increased after each earthquake and became the same as that of the volumetric strain. Furthermore, both the sign and the time history of the volumetric strain match that expected from the poroelastic response of aquifers to a localized coseismic increase in pore pressure. These observations imply that the coseismic change of volumetric strain in the far field of great earthquakes may primarily reflect the poroelastic response to coseismic pore-pressure change that, in turn, is caused by earthquake-enhanced permeability.
WOS关键词WATER-LEVEL CHANGES ; STRESS CHANGES ; CALIFORNIA ; DEFORMATION ; RESPONSES ; PARKFIELD ; FAULT ; WELL
WOS研究方向Geochemistry & Geophysics
语种英语
出版者SEISMOLOGICAL SOC AMER
WOS记录号WOS:000394004900036
资助机构National Science Foundation (NSF) of the United States(EAR-1344424) ; Chinese Academy of Sciences(XDB10010400) ; National Natural Science Foundation of China(41604035) ; China Postdoctoral Science Foundation(2015M570142 ; 2016T90129) ; National Science Foundation (NSF) of the United States(EAR-1344424) ; Chinese Academy of Sciences(XDB10010400) ; National Natural Science Foundation of China(41604035) ; China Postdoctoral Science Foundation(2015M570142 ; 2016T90129) ; National Science Foundation (NSF) of the United States(EAR-1344424) ; Chinese Academy of Sciences(XDB10010400) ; National Natural Science Foundation of China(41604035) ; China Postdoctoral Science Foundation(2015M570142 ; 2016T90129) ; National Science Foundation (NSF) of the United States(EAR-1344424) ; Chinese Academy of Sciences(XDB10010400) ; National Natural Science Foundation of China(41604035) ; China Postdoctoral Science Foundation(2015M570142 ; 2016T90129)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53070]  
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Zhang, Yan
作者单位1.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
3.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA
4.China Earthquake Networks Ctr, 5 Sanlihenanheng Ave, Beijing 100045, Peoples R China
5.China Earthquake Adm, Inst Geophys, 5 Minzu Daxue Nan Rd, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yan,Wang, Chi-yuen,Fu, Li-yun,et al. Mechanism of the Coseismic Change of Volumetric Strain in the Far Field of Earthquakes[J]. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,2017,107(1):475-481.
APA Zhang, Yan,Wang, Chi-yuen,Fu, Li-yun,Yan, Rui,&Chen, Xuezhong.(2017).Mechanism of the Coseismic Change of Volumetric Strain in the Far Field of Earthquakes.BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,107(1),475-481.
MLA Zhang, Yan,et al."Mechanism of the Coseismic Change of Volumetric Strain in the Far Field of Earthquakes".BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 107.1(2017):475-481.

入库方式： OAI收割

来源：地质与地球物理研究所

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