Lushan M_S7.0 earthquake:A blind reserve-fault event

查看全文 作　　者：XU [1]XiWei;WEN [2]XueZe;HAN [1]ZhuJun;CHEN [1]GuiHua;LI [1]ChuanYou;ZHENG [1]WenJun;ZHNAG [3]ShiMin;REN [1]ZhiQun;XU [1]Chong;TAN [1]XiBin;WEI [1]ZhanYu;WANG [1]MingMing;REN [3]JunJie;HE [3]ZhongTai;LIANG [2]MingJian

机构地区：[1]Key Laboratory of Active Tectonics & Volcano,Institute of Geology,China Earthquake Administration;[2]Sichuan Earthquake Administration;[3]Institute of Crustal Dynamics,China Earthquake Administration

出　　处：《Chinese Science Bulletin》索引2013年第58卷第28期,共7页

基　　金：supported by the National Natural Science Foundation of China(91214201 and 40821160550);the Special Fund for Scientific Investigation of the Lushan Earthquake 摘　　要：In the epicenter of the Lushan MS7.0 earthquake there are several imbricate active reverse faults lying from northwest to southeast,namely the Gengda-Longdong,Yanjing-Wulong,Shuangshi-Dachuan and Dayi faults.Emergency field investigations have indicated that no apparent earthquake surface rupture zones were located along these active faults or their adjacent areas.Only brittle compressive ruptures in the cement-covered pavements can be seen in Shuangshi,Taiping,Longxing and Longmen Townships,and these ruptures show that a local crustal shortening occurred in the region during the earthquake.Combining spatial distribution of the relocated aftershocks and focal mechanism solutions,it is inferred that the Lushan earthquake is classified as a typical blind reverse-fault earthquake,and it is advised that the relevant departments should pay great attention to other historically un-ruptured segments along the Longmenshan thrust belt and throughout its adjacent areas. 关键词：地震地表破裂带庐山故障事件储备邻近地区震源机制解地壳缩短

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Lushan M_S7.0 earthquake:A blind reserve-fault event

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