澜沧-耿马M_S7.6地震前前兆综合加权信息熵的变化  

Variation of Comprehensive Weighted Information Entropy of Seismic Precursors Before the Lanchang-Gengma M_S 7.6 Earthquake

作　　者：张昭栋[1] 刘章增[2] 董传富[1] 

机构地区：[1]山东省地震局,山东济南2500142 [2]莘县第一中学,山东莘县252400

出　　处：《地震研究》2002年第1期1-6,共6页Journal of Seismological Research

基　　金：地震科学联合基金资助课题 (批号 1980 6 0 )

摘　　要：利用“专家系统”的思想对澜沧 -耿马MS7 6和MS7 2地震前每一前兆异常事件进行综合评估 ,以每一异常的最可能发震时间来计算发震概率 ,利用各类地震前兆异常群体信息熵研究了系统熵值与地震的关系。分析了 1988年 11月 6日澜沧 -耿马MS7 6和MS7 2地震前这种信息熵变化的特点。地震前 。In this paper,each anomalous event before the Lanchang-Gengma earthquake is comprehensively estimated by using'seismic prediction exprert system'.Probability of anomaly appearance is calculated by means of time that corresponds to the most likely time of earthquake occurrence for each anomaly.Considering the anomalous reliability,validity,significance and dependence,the authors use different weight to study the relation between comprehensive weighted information entropy of the seismic precursoris and earthquakes and analyse the information entropy variation before the Lanchang-Gengma M S 7.6 and 7.2 earthquakes on Nov.6,1988.It is shown that the variation of ordered decrease entropy appeared before the earthquekes.

关 键 词：信息熵 前兆异常 概率 澜沧-秋马地震 综合评估 

分 类 号：P315.72[天文地球—地震学]