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Relocation of two earthquakes in the Southwest Indian Ridge area combining land seismic stations' with OBSs' data
Luo, W; Zhao, MH; Zhang, JZ; Tao, CH; Qiu, XL; Ren, Y; mhzhao@scsio.ac.cn
2017
发表期刊MARINE GEOPHYSICAL RESEARCH
卷号38期号:1-2页码:27-37
摘要Two earthquakes were recorded by 20 ocean bottom seismometers (OBS) deployed in the Southwest Indian Ridge (SWIR) area during a three-dimensional seismic survey in 2010. Their magnitudes (both M (b) = 4.4) and hypocenters have been determined by National Earthquake Information Center (NEIC) only using land seismic stations onset times. After the frequency analysis and the band-pass filtering of the OBSs' data, 7 and 13 P-phase onset times from OBSs were successfully picked for these two events, respectively. Then these two events were relocated by HYPOSAT program with onset times together from OBSs and land seismic stations using different velocity models. These relocation experiments confirm both the importance of adding OBSs' onset data and the need to apply a local oceanic velocity model for the location of these two events happened on the SWIR. This research has accumulated a wealth of experience for earthquakes observation and research using OBSs in the ocean.
部门归属[Luo, Wei; Zhao, Minghui; Zhang, Jiazheng; Qiu, Xuelin; Ren, Yu] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Tao, Chunhui] State Ocean Adm, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China; [Luo, Wei; Ren, Yu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
关键词Southwest Indian Ridge (Swir) Relocation Of Earthquakes Ocean Bottom Seismometer (Obs) Hyposat
资助项目MSG
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16500
专题中科院边缘海地质重点实验室
通讯作者mhzhao@scsio.ac.cn
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GB/T 7714
Luo, W,Zhao, MH,Zhang, JZ,et al. Relocation of two earthquakes in the Southwest Indian Ridge area combining land seismic stations' with OBSs' data[J]. MARINE GEOPHYSICAL RESEARCH,2017,38(1-2):27-37.
APA Luo, W.,Zhao, MH.,Zhang, JZ.,Tao, CH.,Qiu, XL.,...&mhzhao@scsio.ac.cn.(2017).Relocation of two earthquakes in the Southwest Indian Ridge area combining land seismic stations' with OBSs' data.MARINE GEOPHYSICAL RESEARCH,38(1-2),27-37.
MLA Luo, W,et al."Relocation of two earthquakes in the Southwest Indian Ridge area combining land seismic stations' with OBSs' data".MARINE GEOPHYSICAL RESEARCH 38.1-2(2017):27-37.
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