辽宁灯塔M5.1地震序列的前震特征研究

Study On Foreshock Characteristics of M5.1 Earthquake Sequence In Dengta City,Liaoning Province

本文采用辽宁地震台网记录的2013年1月23日辽宁灯塔M5.1地震序列数据为资料基础,重新定位了灯塔M5.1级地震序列及其余震,得到合理的计算结果后做出M5.1级地震序列的地震谱振幅相关系数,在对本地区地震丛做震源机制一致性分析后聚类处理并做出前震震中机制解,结果成图加以讨论。

Based on the M5.1 earthquake sequence data in Dengta City,Liaoning Province recorded by Li⁃aoning Seismological Network on January 23,2013,this paper relocates in Dengta City,Liaoning Province M5.1 earthquake sequence and its aftershocks.After obtaining reasonable calculation results,the correla⁃tion coefficient of seismic spectrum amplitude of the M5.1 earthquake sequence is obtained.After the consis⁃tency analysis of focal mechanism of earthquake clusters in this area,cluster processing is carried out and the mechanism solution of foreshock epicentre is obtained.