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Passive seismic experiment and ScS wave splitting in the southwestern subbasin of South China Sea
Ruan, AG; Li, JB; Lee, CS; Qiu, XL; Pan, SJ; jbli@sio.org.cn
2012
发表期刊CHINESE SCIENCE BULLETIN
ISSN1001-6538
卷号57期号:25页码:3381-3390
摘要The seismic experiment of 3D array of OBS in the southwestern sub-basin of the South China Sea (SCS) is briefly introduced in this paper. The data analysis of broadband OBS shows that totally 93 earthquakes with magnitude of Ms 6.0-6.9 and 10 earthquakes with magnitude above Ms 7.0 were recorded in high quality during this experiment, especially the catastrophic earthquake Ms 9.0 occurred in the east sea area of Japan on March 11, 2011. The anisotropy parameters inversion of ScS wave of four events above Ms 7.0 indicates that the fast direction of shear wave is N58A degrees E parallel to the ceased spreading ridge of the southwestern sub-basin of SCS (the slow direction is S35A degrees E perpendicular to the spreading ridge), which means the spreading ridge is under compressing stress at present and the cessation of seafloor spreading is related to such stress field as well.
部门归属[Ruan AiGuo; Li JiaBiao; Pan ShaoJun] State Ocean Adm, Second Inst Oceanog, Hangzhou 310012, Zhejiang, Peoples R China; [Lee ChaoShing] Natl Taiwan Ocean Univ, Inst Appl Geosci, Chilung 20224, Taiwan; [Qiu XueLin] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
关键词Broadband Obs Southwestern Subbasin Of Scs Passive Seismic Experiment Anisotropy Spreading Ridge
学科领域Multidisciplinary Sciences
语种英语
资助项目海洋地质
WOS记录号WOS:000307750500017
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10315
专题中科院边缘海地质重点实验室
通讯作者jbli@sio.org.cn
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GB/T 7714
Ruan, AG,Li, JB,Lee, CS,et al. Passive seismic experiment and ScS wave splitting in the southwestern subbasin of South China Sea[J]. CHINESE SCIENCE BULLETIN,2012,57(25):3381-3390.
APA Ruan, AG,Li, JB,Lee, CS,Qiu, XL,Pan, SJ,&jbli@sio.org.cn.(2012).Passive seismic experiment and ScS wave splitting in the southwestern subbasin of South China Sea.CHINESE SCIENCE BULLETIN,57(25),3381-3390.
MLA Ruan, AG,et al."Passive seismic experiment and ScS wave splitting in the southwestern subbasin of South China Sea".CHINESE SCIENCE BULLETIN 57.25(2012):3381-3390.
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