摘要
运用2007年以来山西流动地磁观测资料,分析研究2009年以来山西ML≥4.0以上中等地震与流动地磁异常变化的关系。结果表明,流动地磁变化与该区的地震存在一定的对应关系,震前异常持续时间最短1个月,最长9个月,且有2个或2个以上测点同时出现异常,异常特征为下降的负异常。
Mobile geomagnetic observation data of Shanxi since 2007 is used to study the relationship between ML≥4.0moderately strong earthquakes since 2009 and anomalies of mobile geomagnetism in Shanxi.The results show there is a certain correlations between the mobile geomagnetic variation and the earthquakes in this area.Before the earthquake,the shortest anomaly duration was 1month and the longest,9months.Also,2or more than 2points appeared descending negative anomalies at the same time.
出处
《山西地震》
2015年第3期1-6,共6页
Earthquake Research in Shanxi
基金
山西省地震局科研项目(SBK-1404)
关键词
流动地磁
中等地震
异常特征
Mobile geomagnetism
Moderate strong earthquake
Anomaly characteristics
