安徽钻孔体应变数据映震能力分析  

The seismic capability analysis of borehole strain data in Anhui Province

作　　者：刘川琴[1] 李发[2] 裴红云[2] 孙鸿博[1] 葛计划[1] Liu Chuanqin;Li Fa;Pei Hongyun;Sun Hongbo;Ge Jihua(Hefei Seismic Station,Anhui Province,Hefei 230031,China;Anhui Earthquake Agency,Hefei 230031,China)

机构地区：[1]安徽省合肥地震台,合肥230031 [2]安徽省地震局,合肥230031

出　　处：《地震科学进展》2020年第11期21-26,共6页Progress in Earthquake Sciences

基　　金：安徽省青年基金课题(20180406)资助。

摘　　要：在前期研究的基础上,遴选出4套精度较高的数据资料进行映震能力分析,通过对2015—2018年全球发生的60次MS≥7地震的同震效应和临震异常现象记录情况的统计分析,得到体应变对震中距为8000 km范围内的MS≥7地震的同震记录较好,约22%的地震前记录到了临震异常现象,同时对震前数据异常特征进行了分析总结,初步探讨了力学性质。Based on previous research,this paper selected four seismic stations to analyze seismic capability.Through statistics of the coseismic effect of 60 earthquakes with MS≥7 occurred in the world from 2015 to 2018 and the record of impending anomalies before large earthquakes.The results show that the body strain is good for the coseismic records of MS≥7 earthquakes with epicenter distance of 8000 km.About 22%of the anomalies were recorded before the earthquake.At the same time,the abnormal phenomena are described and classified.This paper makes a statistical analysis of various types.In this paper,the statistical analysis of various types is carried out and the mechanical properties are preliminarily discussed.

关 键 词：大地震 体应变 同震效应 临震异常 

分 类 号：P315.63[天文地球—地震学]