印度尼西亚苏门答腊M_S8.9级大震对中国大陆地震活动影响估计  

An estimate of the influence on the continental seismicity in China by Sumatra M_S 8.9 macroquake in Indonisia

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：《华南地震》2005年第2期47-50,共4页South China Journal of Seismology

摘　　要：为了分析2004年12月26日印度尼西亚苏门答腊MS8.9级大地震对中国大陆地震形势的影响,介绍了1935～1957年的苏门答腊—蒙古地震大迁移事件,此迁移事件持续22a,长度4600km,迁移速度205km/a。迁移由1935年12月28日苏门答腊MS7.7地震为起点,由印度—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 analyze the influence on continental earthquake by Sumatra MS8.9 earthquake on Dec. 26, 2004, we introduce in this paper the event of Sumatra-Mongolia earthquake migration, which lasted for 22 years from the year 1935 to 1957 and migrated for 4600km in length with the speed of 205km/y. Started from the Dec. 28 1935 MS8.1 Sumatra earthquake and the subduction event in the southern boundary of India-Austria plate and Eurasia plate, the migration got into the continent of China after it arrived at Burma arc and the eastern end of Himalayan arc towards the north through Andaman trench. Then it reached directly Mongolia along the seismic belt on the mean axis of China-Mongolia continent.

关 键 词：地震迁移 应力调整 苏门答腊地震 

分 类 号：P315.727[天文地球—地震学]