CAJ | 학술논문

从2013年10月31日开始，不到一个月的时间吉林省前郭县就发生了5次5级以上地震，最大地震为11月23日的MS5．8地震。根据震源机制解、余震序列特征、震中区地质构造特点以及历史地震情况，对这次强震群的发震条件进行探讨。认为震源区位于松辽盆地中部滑脱面上部的推覆构造系内，我国东北块体应力应变状态受2011年日本9级巨震影响，应力使滑脱面上部的隐伏铲形断层面组发生错动，从而发生这次强震群。
종2013년10월31일개시，불도일개월적시간길림성전곽현취발생료5차5급이상지진，최대지진위11월23일적MS5．8지진。근거진원궤제해、여진서렬특정、진중구지질구조특점이급역사지진정황，대저차강진군적발진조건진행탐토。인위진원구위우송료분지중부활탈면상부적추복구조계내，아국동북괴체응력응변상태수2011년일본9급거진영향，응력사활탈면상부적은복산형단층면조발생착동，종이발생저차강진군。
From October 31,2013,5 earthquakes with magnitude greater than M5 oc-curred in Qianguo County,Jilin Province within 1 month.We discuss the causative condition of the strong earthquake swarm according to the characteristics of focal mechanism solution, aftershock sequence,the geological structure characteristics and historical earthquake in epi-central region.We conclude that the epicentral area is located in the nappe structure in Songliao basin.The stress and strain condition of NE China block is affected by 2011 M9 large earthquakes in Japan,the change of the stress make the blinded listric fault plane group to detach,and resulted in the strong earthquake swarm.