2016年青海门源6.4级地震前测震学异常回顾与思考  

Review and Thinking of Seismometry Anomalies before Qinghai Menyuan M_S6.4 Earthquake in 2016

作　　者：王培玲[1] 苏维刚[1] 孙丽[1] 

机构地区：[1]青海省地震局,青海西宁810001

出　　处：《地震研究》2016年第S1期14-19,133,共7页Journal of Seismological Research

基　　金：青海省地震科学基金项目(2016A01)资助

摘　　要：对2016年1月21日门源6.4级地震前出现的测震学异常进行跟踪分析,发现震前主要以中长期异常为主,其中青海地区6级以上地震超长平静异常显著,祁连地震带3级以上地震频次和b值时间扫描存在异常,地震平静特征参数Wq值虽然在空间上有一定的指示意义,但在该震前无显著的短临异常。综上,在震情判定过程中采用阶段性渐进式地震预报思路也是有效的。Through tracking on the seismometry anomaly of Menyuan M_S6.4 earthquake on Jan.21,2016,we find that the seismometry items mainly showthe middle and long term anomaly before the earthquake,such as the over-long quiet period of M≥6.0 earthquakes in Qinghai area is significant,the occurrence frequency of M≥3.0earthquakes in Qilian seismic belt and the spatial scanning of b value showanomaly before the Menyuan M_S6.4earthquake.Although the seismic quiet characteristic parameter Wq value has a certain meaning in space,it didn't showthe short- impending anomaly.In summary,using progressive ideas to predict the earthquake in the process of earthquake judgment is effective.

关 键 词：门源6.4级地震 测震学异常 震情判定 

分 类 号：P315.6[天文地球—地震学]