昆明地震台地震前形变异常分析  

Analysis on the deformation anomalies before earthquake at Kunming Seismic Station

作　　者：冯琼松 白仙富 李鹏 钱文品 

机构地区：[1]昆明基准地震台,中国云南650204 [2]贵阳基准地震台,中国贵州550018

出　　处：《地震地磁观测与研究》2015年第6期80-86,共7页Seismological and Geomagnetic Observation and Research

基　　金：三结合课题<昆明台形变观测典型干扰特征分析>资助

摘　　要：选择昆明地震台2012—2014年形变仪记录,利用形态法、年变曲线、矢量合成法,分析云南省M_S≥5.0和全球M_S≥8.0地震前出现的短中期和临震异常特征。分析表明:形态法分析甄别出较好的临震异常,日均值年变曲线和矢量合成图分析获得较好映震效果的中短期异常。Based on the deformation record data of Kunming Seismic Station from the year 2012 to 2014, with the methods of morphology, yearly mean value curve and vector composition diagram, all the medium-short term anomalies and impending earthquake anomalies of both M_S≥ 5.0 in Yunnan Province and M_S≥ 8.0 worldwide are analyzed in this article. The results showed that the morphology method could identify the impending earthquake anomalies, the daily mean value curve by year and the vector composition diagram could be used to recognize the medium-short term earthquake anomalies.

关 键 词：中短期异常 临震异常 异常特征 

分 类 号：P315.72[天文地球—地震学]