古浪窗口地震的ECRS方法异常指标识别研究

摘要

基于多种地震学参数的地震对应相关谱（ECRS）方法,以祁连山地震带5.5级以上地震为目标地震,分析研究了目标地震前古浪窗口小震地震活动性参数的异常特征,提取了古浪窗口小震活动的多种地震学参数的综合异常指标。结果表明,1970年以来祁连山地震带5.5级地震前,利用地震活动性多种参数的综合对应谱可以较好地识别地震活动性参数的异常,其对应率较高。%The earthquake corresponding relevancy spectrum（ECRS method） based on multiple seismology parameter have been applied in certain region,that is Xinjiang,Sichuan,Yunnan,Norhern China and northeast margin of Qinghai-Tibet.Based on the ECRS method,the precursory anomaly identification of Gulang window earthquake before the Ms≥5.5 earthquakes occurred in Qilian seismic belt is studied.The results show that based on the ECRS method,the authors can identify the precursory anomaly by seismic activity parameter of the Gulang window earthquake.From 1970＇s,the Qilian seismic belt（Ms≥5.5 earthquakes）is related to the Gulang window small earthquake activity.The earthquake example research results show that the anomaly confidence is good,and the rate of corresponding earthquake is higher.