大同－阳高地震及强余震电磁辐射异常  

Electromagnetic Radiation Anomaly of the Datong-Yanggao Earthquake and Its Strong Aftershock

作　　者：关华平[1] 陈智勇[1] 肖爱华[1] 徐东红[1] 

机构地区：[1]国家地震局分析预报中心,河北省廊坊市地震局

出　　处：《山西地震》1995年第1期39-44,共6页Earthquake Research in Shanxi

摘　　要：叙述了河北地震电磁辐射观测台网的分布、仪器系统的主要性能和观测资料概况及其分析使用方法，研究了大同－阳高１９８９年１０月１８日６．１级的中强震群和１９９１年３月２６日５．８级地震前后台网电磁辐射记录资料的变化情况。统计、计算了异常参数和数量；得出了地震电磁辐射异常具弱－强－弱－地震，临近地震频率升高，异常变化越强烈、异常时间越长、异常量越大，地震也越强等特征的结论。The distribution,principal performence of the instrument system,observational data and its analysis pro-cess method of the electromagnetic radiation observation network in Hebei province were described.The vari-ation of observational data of the electromagnetic radiation observation network before and after the Datong-Yanggao M6.1 earthquake on October 18,1989 and M5. 8 earthquake on March 26, 1991 was analvzed.Theabnormal parameter and abnormal number were counted and calculated.The conclusion shows that the elec-tromagnetic radiation anomaly displays feature of“weak-strong-weak-earthquake”,the frequency roseimmediately before the earthquake,the stronger the anomaly change,the longer the anomaly duration and thegreater the anomaly value,the greater is the earthquake.

关 键 词：电磁辐射 异常特征 大同-阳高地区 地震 余震 

分 类 号：P315.63[天文地球—地震学]