2014年4月1日黄海M_L5.2地震发震背景

The research of seismic background of Yellow Sea M_L5.2 earthquake

叙述南黄海北部地区具备发生中强地震的地质构造条件,分析2014年4月1日南黄海北部M_L5.2地震前历史地震活动。利用地震分析预报软件Map SIS计算震前地震活动性参数。结果表明,部分参数时间扫描和空间扫描结果显示出一定异常。

Taking the April 1, 2014 ML5.2 earthquake in the Yellow Sea as an example, in this paper, the seismological background of moderately strong earthquakes and seismic activities in the north part of the South Yellow Sea are analyzed. Also, with the help of earthquake analysis and prediction system（Map SIS）, some seismic parameters of this region were analyzed. The results show that there are historic and geological structure background for future moderately strong earthquakes in the region where the above mentioned earthquake happened. Some seismic parameters including temporal and spatial scanning parameters show abnormity before the earthquake, which probably indicates the increasing of earthquake risk in this region.