苏门答腊—蒙古(1935～1957)地震大迁移的回顾  

Retrospect to the Migration of Sumatra-Mongolia Earthquakes from 1935 to 1957

作　　者：赵根模[1] 刘砚越[1] 王大宏[1] 

机构地区：[1]天津市地震局,天津300201

出　　处：《国际地震动态》2005年第9期6-9,共4页Recent Developments in World Seismology

摘　　要：为了分析2004年12月26日苏门答腊MS8.9大地震对大陆地震形势的影响,本文介绍了1935～1957年苏门答腊-蒙古地震大迁移事件,时间持续22年,长度 4600 km,迁移速度205 km/a.迁移以1935年12月28日苏门答腊MS7.7地震为起点,从印度-澳大利亚板块与欧亚板块南部边界俯冲事件开始,向北经安达曼海沟到达缅甸弧和喜马拉雅弧东端后,进入中国大陆,沿着中蒙大陆中轴地震带直抵蒙古.In order to analyse the influence by Dec. 26 2004 Ms8.9 Sumatra earthquake on continental earthquakes, migration has been introduced in the paper. Sumatra-Mongolia earthquake lasted 22 years from 1935 to 1957. The migration distance is about 4600 km with migration velocity 205 km/a. Started from Dec. 28 1935 Ms7.7 Sumatra earthquake in the southern boundary of IndiaAustralia plate and Eurasia plate, the migration got into the continent of China after arriving at Burma arc and eastern end of Himalayan arc towards north through Andaman trench. Then it reached directly Mongolia along the seismic belt of the mean axis of China-Mongolia continent.

关 键 词：地震 迁移 应力转移 

分 类 号：P315.71[天文地球—地震学]