吉林省中等地震前超低频电磁波异常分析

英文篇名：ANALYSIS OF ELF ELECTROMAGNETIC WAVES’ ANOMALIES BEFORE MODERATE EARTHQUAKES IN JILIN PROVINCE
中文刊名：防灾减灾学报
英文刊名：Journal of Disaster Prevention and Reduction
作者：吴江星 ; 张晓强 ; 于洪池
英文作者：WU Jiang-xing ; ZHANG Xiao-qiang ; YU Hong-chi(Helong Seismological Observatory of Changchun City ; Earthquake Administration of Jilin Province ; Jilin Changchun 130022 ; China)
中文关键词：超低频 ; 深源地震 ; 电磁场 ; 电磁异常
英文关键词：ultra-Low frequency ; deep-focus earthquake ; electromagnetic field ; electromagnetic abnormality
出版日期：2010-09-15
机构：吉林省地震局长春合隆地震台;
年：2010
期：03
出版单位：防灾减灾学报

摘要

本文利用超低频电磁(ELF)观测仪电磁波技术测量空间和大地电磁信号,可研究空间电磁场和地下电阻率结构,研究地震引起的电磁场异常变化。2009年3-10月,在吉林省中东部发生多次中等地震前后,电磁场和视电阻率出现了较好的异常对应。本文对这些电磁异常进行了分析并对产生这些异常变化的可能的成因机制进行了探讨。
Measuring the spatial and telluric electromagnetic signals by electromagnetic wave technology with Ultra-Low Frequency(ELF) electromagnetic observation instrument can be used to study the spatial electromagnetic fields and the subterranean resistivity structures,and the earthquake-led-to abnormality variations of the electromagnetic field.From March to October in 2009,before and after the many moderate earthquakes occurred in the mid-eastern part of Jilin Province,the electromagnetic field and the apparent resistivity showed better analogies of abnormalities.In our article,we analyze these electromagnetic abnormalities,and the possible causes of formation and mechanism that led to these abnormality variaions are also probed.

引文

[1]赵国泽,汤吉等.2003人工源超低频电磁波技术及首都圈地区的测量研究,地学前缘,10:248～257.
    [2]Vinod Kushwah,Vikram Singh 2005 Associated with the recent Pakistan earthquake of 8 October,2005 J.Ind.Geophys.11,(4)197～207.
    [3]S.Bhattacharya,S.Sarkar,2007 Satellite and ground-based ULF/ELF emissions observed before Gujarat earthquake in March CURRENT SCIENCE,.93,NO.(1),41～46.
    [4]Masashi Hayakawa,Katsumi Hattori and Kenji Ohta 2007 Monitoring of ULF(ultra-low-frequency)Geomagnetic Variations Associated with Earthquakes.Sensor 2007,7,1108-1122.
    [5]汤吉,赵国泽等.2008年5月12日汶川8.0级地震强余震观测的电磁同震效应,地震地质,30(3):739～745.
    [6]肖武军,关华谷等,2006.地震“ULF”电磁扰动接收原理及异常特征,地震地磁观测与研究,27(5):53～59.