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山西地区中小地震震源机制解系统聚类分析

Systematic Cluster Analysis of Focal Mechanism of Medium-small Earthquakes in Shanxi

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【Author】 SU Yan1,2,LIU Su-zhen1,2,FAN Jin1,2,SONG Mei-qin1,2,JIN Yu-zhen3,2,PENG Li-juan4,2(1.Earthquake Administration of Shanxi Province,Taiyuan,Shanxi 030021,China; 2.National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China; 3.Taiyuan Reference Seismological Station of Earthquake Administration of Shanxi Province,Taiyuan,Shanxi 030025,China; 4.Datong Central Seismological Station of Earthquake Administration of Shanxi Province,Datong,Shanxi 037800,China)

【机构】山西省地震局；太原大陆裂谷动力学国家野外科学观测研究站；山西省地震局太原基准地震台；山西省地震局大同中心地震台；

【摘要】运用P、S波最大振幅比计算得到2007年至2010年山西地区347次中小地震震源机制解,进行系统聚类分析。结果表明,山西地区小震错动方式以走滑型的正断层活动为主,伴有少量的斜滑、逆冲类型。更多还原

【Abstract】 The focal mechanisms of 347 medium-small earthquakes from 2007 to 2010 in Shanxi are calculated by using the maximum amplitude ratio of P and S wave,and the systematic cluster analysis is also carried out.The results indicate that the dislocation mode of small earthquakes is dominated by strike-slip normal fault activities in Shanxi,accompanying with a few oblique-slip and thrust fault activities.更多还原

【关键词】中小地震；震源机制解；系统聚类；
【Key words】 Medium-small earthquakes； Focal mechanism； Systematic cluster；

【文献出处】山西地震 ,Earthquake Research in Shanxi , 编辑部邮箱 ,2011年02期

【分类号】P315.33
【被引频次】2
【下载频次】79

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