诱发地震与诱发性前兆  

INDUCED EARTHQUAKE AND PRECURSOR

作　　者：毛可[1] 郭大庆[1] 张树勋[1] 孙景芳[1] 郭文娣 

机构地区：[1]兰州地震研究所,国家地震局分析预报中心

出　　处：《高原地震》1995年第2期1-11,共11页Plateau Earthquake Research

基　　金：国家地震局85-04-02课题

摘　　要：本文以１９６９年以来中国大陆９对ＭＳ≥５．９级地震为例，引出诱发性前兆的概念。诱发性前兆是指远区强震（Ａ）发生后３个月内产生于未来后续地震（Ｂ）附近（△≤２００ｋｍ）的，并与该地震有某种成因联系的继发性异常和新异常。诱发地震与诱发性前兆是反映强震间耦合作用的同因异象。１９８８年以来南北带强震组（１９８８年耿马、澜沧７．６级地震──１９９０年天祝、景泰６．２级地震）诱发地震和诱发性前兆显著，并呈连锁式分布，表明该地震组各强震之间具有较强的耦合作用。In this paper,nine couple earthquakes with Ms≥5. 9 since 1969 in Chinese continent have been liken as examples, the concept of induced precursor has been raised, it is such successive and new precursor which appear near the sequent event in three months after the remote stronger event, and has centuinly relation with it. The induCed earthquake and precursor reflect the coupled effects between stronger earthquakes which are caused by the same reason but have different pattern. Since 1988 in the North-South seismic belt, the induced earthquakes and precursors are obvious, and assume the chain distribution for the group of stronger earthquakes which induced Gengma-Lancang earthquake with Ms 7. 6 in 1988, Tianzhu-Jingtai earthquake with the6. 2 in 1990, etc. This indicates the stronger coupled effectS exist in the events in this group.

关 键 词：诱发性前兆 同因异象 耦合作用 

分 类 号：P315.1[天文地球—地震学]