华东地区地震成组和迁移特征分析

Abstract

Abstract: We analyzed in detail the characteristics of earthquake grouping and migration in eastern China. The results show that seismic activity in the region can be divided into four active episodes since 1700, the second and the third of which have obvious group characteristics for inland M>5 earthquakes. M>4 earthquakes in the west and east of the Tanlu fault belt usually occured temporally in groups, besides, those M>5 earthquakes have orientational migration characteristics from south to north in middle and south segment of the belt since 1900, M_L>4 earthquakes can be divided into three groups and they migrate from west to east in the belt and 200 km around the belt since 1993. The study is helpful to seismic trend analysis in eastern China.

Key words: Seismic episode, Group activity, Earthquake migration, Tanlu fault belt, Eastern China

CLC Number:

P315.7

TANG Lan-rong, GAO Jian-hua, ZENG Xin-fu. Grouping and Migration of Earthquakes in Eastern China[J]. EARTHQUAKE, 2015, 35(3): 86-92.

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Grouping and Migration of Earthquakes in Eastern China

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