唐山古冶M_(S)5.1地震的多参数因子分析  

Multi-parameter Factor Analysis of M_(S)5.1 Earthquake in Guye,Tangshan

作　　者：王岩[1] 郭晓燕[1] 夏彩韵 孙庆山 WANG Yan;GUO Xiao-yan;XIA Cai-yun;SUN Qing-shan(Liaoning Earthquake Agency,Liaoning Shenyang 110034,China)

机构地区：[1]辽宁省地震局,辽宁沈阳110034

出　　处：《防灾减灾学报》2022年第1期25-30,共6页Journal of Disaster Prevention And Reduction

摘　　要：以2020年7月12日唐山古冶M_(S)5.1地震为研究震例,选取反映地下介质、地震强度、时空特征等信息的多种地震活动性参数,筛选参数特征,应用因子分析的方法进行多参数综合分析,所得综合参数W曲线在古冶M_(S)5.1地震发生前有明显的异常变化。同时,不同单因子参数曲线在震前的不同时段出现了时间差异变化。We calculated 14 seismic activity parameters in a variety of seismicity parameters that can reflect underground media,earthquake intensity,temporal and spatial characteristics and other information of the M_(S)5.1 earthquake occurred in Guye,Tangshan,and then used factor analysis method to mine and get a comprehensive factor.The result showed that there were significant changes before the earthquake on the comprehensive factor curve and different single factor parameter curves show time difference changes in different periods before the earthquake.

关 键 词：地震活动性参数 因子分析 古冶地震 

分 类 号：P315.72[天文地球—地震学]