岫岩-海城5.6级地震前电磁前兆变化特征  

THE CHARACTERISTIC OF ELECTROMAGNETIC PRECURSOR ARIATION PRIOR TO XIUYAN-HAICHENG Ms5.6 EARTHQUAKE

作　　者：张玲[1] 李星航 刘哲[1] 戴瑾[3] 

机构地区：[1]辽宁省地震局,辽宁沈阳110031 [2]新城子地震台,辽宁沈阳110121 [3]铁岭地震台,辽宁铁岭112000

出　　处：《东北地震研究》2000年第2期66-70,共5页Seismological Research of Northeast China

摘　　要：岫岩-海城5．6级地震前半年内，先后出现了义县地电阻率、台安地电阻率异常变化，这些异常信息也是该次地震成功预报的重要前兆判据之一．研究认为，震前的义县、台安地电阻异常属于“场兆”，而临震前的电磁辐射信息是“源兆”．同时，电阻率的异常变化显示出向震中迁移的特点．There are resistivity anomalous variation successively in Yixian and Taian about half a year prior to Xiuyan-Haicheng Ms5.6 earthquake, it is one of the key precursory criterions for predicting the earthquake. We have studied the matters and obtained the results of Yixian and Taian resistivity anomaly variation is a seismic fieldprecursor, the prequalce electromagnetic radiation is a source-precursor and the anomaly variation of resistivity moves towards the epicentre.

关 键 词：电磁辐射 电磁异常 地震场兆 地震源兆 

分 类 号：P315.721[天文地球—地震学]