| Discrimination Between Foreshocks and Earthquake Swarm from the Change of First Motion Sign |
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| 作者姓名： | Chuai Yongqing Wang Zhaoli Meng Yanying Peng Meixuan |
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| 作者单位： | Chuai Yongqing，Wang Zhaoli，Meng Yanying and Peng MeixuanSeismological Bureau of Shanxi Province，Taiyuan 030002，China |
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| 摘 要： | Based on the data of first motion of 11 earthquake sequences with ML ≥ 3.0 recorded by the Telemetric Seismic Network of Shanxi since the 1980s, the first motion characteristics of each earthquake sequence were studied. It is known that earthquake sequences of different types have different consistency characteristics of focal mechanism. The decrease and increase of the first motion contradictory sign ratios could be taken as an index to judge whether there would still be a larger earthquake to come after the earthquake sequence.
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Discrimination Between Foreshocks and Earthquake Swarm from the Change of First Motion Sign |
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| Chuai Yongqing,Wang Zhaoli,Meng Yanying,Peng Meixuan.Discrimination Between Foreshocks and Earthquake Swarm from the Change of First Motion Sign[J].Earthquake Research in China,2001,15(1):57-74. |
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| Authors: | Chuai Yongqing Wang Zhaoli Meng Yanying and Peng Meixuan |
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| Institution: | Seismological Bureau of Shanxi Province, Taiyuan 030002, China Seismological Bureau of Shanxi Province, Taiyuan 030002, China Seismological Bureau of Shanxi Province, Taiyuan 030002, China Seismological Bureau of Shanxi Province, Taiyuan 030002, China |
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| Abstract: | |
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| Keywords: | First motion Focal mechanism Foreshock and earthquake swarm |
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