新疆中强地震前ECRS方法的异常研究

英文篇名：Research on Anomaly of ECRS Method before Moderate-strong Earthquakes in Xinjiang Region
中文刊名：西北地震学报
英文刊名：Northwestern Seismological Journal
作者：唐兰兰 ; 王海涛 ; 王琼
英文作者：TANG Lan-lan1 ; WANG Hai-tao1 ; 2 ; WANG Qiong1(1.Earthquake Administration of Xinjiang Uygur Autonomous Region ; Urumqi 830011 ; China ; 2.Lanzhou Base of Institute of Earthquake Science ; China Earthquake Administration ; Lanzhou 730000 ; China)
中文关键词：地震对应相关谱(ECRS) ; 综合前兆异常 ; MATLAB ; 分析软件 ; 地震预测
英文关键词：Earthquake corresponding relevancy spectrum(ECRS) ; Comprehensive precursor anomaly ; MATLAB ; Analysis software ; Earthquake prediction
出版日期：2011-06-30
机构：新疆维吾尔自治区地震局;中国地震局地震预测研究所兰州科技创新基地;
年：2011
期：02
出版单位：西北地震学报

摘要

基于多种地震学参数的地震对应相关谱(ECRS)方法在新疆地区的地震预测中已得到一定程度的应用。为了进一步检验该方法的效能,本文根据其定义和识别方法研制了ECRS1.0分析软件,并应用于实际震例中。结果显示,利用该分析软件可以充分提取多种地震学参数的综合前兆异常信息;新疆大部分中强震前半年至一年半震源区及附近区域开始出现高值异常集中区域,并随着地震的临近逐渐向震中集中扩展,在震后半年至两年逐渐消散或弱化。
The earthquake corresponding relevancy spectrum(ECRS) method which based on multiple seismic parameters has been used in earthquake prediction in Xinjiang region for a certain extent in recent years.In order to test the efficency of ECRS method,a software ECRS1.0 for analyzed anomaly of ECRS is developed in this paper,according to the defining and anomaly identifying method of ECRS,and is applied in real earthquake cases.The result shows that the comprehensive precursor anomaly information for many seismic parameters can be extracted by this method adequately.In Xinjiang region,the high value area of anomaly appears before most moderate-strong earthquakes around epicentre within half-year to 1.5 year,spreads and strengthens to epicentre area gradually before event coming,and disappears or turns to low value after event in half-year to two years.

引文

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