中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
3-D P and S wave velocity structures and their relationship to strong earthquakes in the Chinese capital region

文献类型:期刊论文

作者Qi, C; Zhao, DP; Chen, Y; Chen, QF; Wang, BS
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2006-05-01
卷号49期号:3页码:805-815
关键词the capital circle area tomography crustal 3-D structure Poisson's ratio
ISSN号0001-5733
文献子类Article
英文摘要We used 33487 P and 31822 S wave arrival times. from 2866 events recorded by the North China seismic telemetry network and the Capital Circle digital seismic telemetry network from 1993 to 2005. The crustal three-dimensional P and S wave velocity structures in the Capital Circle area (38.5 degrees N similar to 41 degrees N, 114 degrees E similar to 120 degrees E) are obtained with a horizontal resolution of 25 to 50 km. The Poisson's ratio distribution is also achieved. Our results show that there is significant inhomogeneity in the P and S velocity structures in the Capital Circle area. Shallow velocity anomalies distributions are consistent With main surface geological tectonic features. We found that strong earthquakes in the seismic zone are apt to occur between low velocity and high velocity zones as well as in low Poisson's ratio zones. Under these hypocenters, low velocity and high Poisson's ratio anomalies exist. By comparison with the results of other regions, the relation between earthquake triggering and fluids is discussed. We think that the effect of fluids plays an important role in the earthquake generation and triggering processes.
WOS关键词BENEATH NORTHEASTERN JAPAN ; 1994 NORTHRIDGE EARTHQUAKE ; RUPTURE NUCLEATION ; KOBE EARTHQUAKE ; V-P ; FLUIDS ; TOMOGRAPHY ; CRUST ; ZONE ; HYPOCENTER
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000237873000024
出版者SCIENCE CHINA PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/66658]  
专题中国科学院地质与地球物理研究所
通讯作者Qi, C
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Ehime Univ, Geodynam Res Ctr, Matsuyama, Ehime, Japan
3.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China
4.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Qi, C,Zhao, DP,Chen, Y,et al. 3-D P and S wave velocity structures and their relationship to strong earthquakes in the Chinese capital region[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(3):805-815.
APA Qi, C,Zhao, DP,Chen, Y,Chen, QF,&Wang, BS.(2006).3-D P and S wave velocity structures and their relationship to strong earthquakes in the Chinese capital region.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(3),805-815.
MLA Qi, C,et al."3-D P and S wave velocity structures and their relationship to strong earthquakes in the Chinese capital region".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.3(2006):805-815.

入库方式: OAI收割

来源:地质与地球物理研究所

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