【摘要】 2013年4月22日内蒙古通辽市科尔沁左翼后旗、辽宁阜新市彰武县交界发生5.3级地震。研究发现,该地震序列震中分布、震源机制及烈度考察极震区长轴方向均为近东西方向,与横贯震区的养畜牧河断裂走向一致,综合判定该断裂是5.3级地震的发震构造。更多还原

【Abstract】 On April 22,2013,a M 5.3 earthquake occurred in the border states between Horqin Left Back Banner,Inner Mongolia Region and Zhangwu County,Fuxin City,Liaoning Province,with an epicenter in the western slope of Songliao basin.With a thick cover,several underground faults are distributed in this area,and the study of earthquake activity in this area is limited.Therefore,the study of seismogenic structure is based on seismic data.The earthquake sequence is mainly in east west direction and the strike is 105°.The meizoseismal region is in east west direction,in accordance with the Yangxumu River fault.Taking these aspects into consideration,the Yangxumu River fault is the main seismogenic structure of this earthquake.更多还原