华北地区震群与强震的空间分布关系研究  

SWARM IN NORTH CHINA AND THE STUDY ON THE RELATIONSHIP BETWEEN THE SPATIAL DISTRIBUTION OF EARTHQUAKE

作　　者：李京锦 关晓明[1] 王亮[1] 纪延辉[1] 李哲[1] 

机构地区：[1]锦州地震台,辽宁锦州121013

出　　处：《防灾减灾学报》2016年第2期52-57,共6页Journal of Disaster Prevention And Reduction

摘　　要：通过系统研究1970年以来华北地区发生的震群活动,按照《地震学分析预报方法程式指南》选择震群原则筛选了1970年以来华北地区强震发生前的震群,利用MAPSIS软件判定震群性质。初步探讨该地区震群活动与强震(MS≥6.0)的空间分布关系为华北中强地震发生前一般都有前兆震群存在。主震震级越大,震群出现的越早,距主震距离越远,并且前兆震群会发生迁移现象。Occurred in north China since 1970 through the system research of the swarm activity, according to the seismological method for analysis and prediction program guide screened in the selection principles of swarm since 1970 in north China before earthquake swarm, using software MAPSIS determining swarm nature. Preliminary discussion on the region swarm activity and earthquake （Ms 6.0 or higher） the spatial distribution of relationship before strong earthquakes occurred in north China for precursory swarm generally exist. Main shock, the greater the magnitude earthquake clusters in the earlier, the farther the distance from the main shock, and the precursor swarm migration phenomenon happens.

关 键 词：震群 强震 华北地区 

分 类 号：P315[天文地球—地震学]