CAJ | 학술논문

2013年10月31日在吉林省松原市前郭县发生MS5.5、MS5.0级地震，11月22日和11月23日又分别发生MS5.3、MS5.8和MS5.0级地震，构成2013年吉林前郭5级震群，其中最大的地震为11月23日的MS5.8级地震，发震断层位于扶余-肇东断裂附近。本研究计算前郭MS5.8级地震的静态库伦应力，明确前郭MS5.8级地震对周围的同震库仑应力影响；进一步计算前郭地震对周围主要断裂带的静态库仑应力影响，结果显示，前郭MS5.8级地震对其附近的长春-四平断裂、密山-敦化断裂带的影响是卸载的，对依兰-伊通断裂的影响是加载的，应力加载量在+0.002~0.004bar。
2013년10월31일재길림성송원시전곽현발생MS5.5、MS5.0급지진，11월22일화11월23일우분별발생MS5.3、MS5.8화MS5.0급지진，구성2013년길림전곽5급진군，기중최대적지진위11월23일적MS5.8급지진，발진단층위우부여-조동단렬부근。본연구계산전곽MS5.8급지진적정태고륜응력，명학전곽MS5.8급지진대주위적동진고륜응력영향；진일보계산전곽지진대주위주요단렬대적정태고륜응력영향，결과현시，전곽MS5.8급지진대기부근적장춘-사평단렬、밀산-돈화단렬대적영향시사재적，대의란-이통단렬적영향시가재적，응력가재량재+0.002~0.004bar。
MS 5.5, MS 5.0 earthquakes occurred in Qianguo county, Songyuan city, Jilin province. A few days later MS 5.3, MS 5.8 and Ms 5.0, earthquakes occurred in the Qianguo region on Fuyu-Zhaodong fault on November 22, 23, 2013, respectively, which has formed the earthquake swarm of M 6.0. In this study, we calculated the Coulomb stress change induced by the Qianguo MS 5.8, earthquake at first. Then we calculated the Coulomb stress change generated by the Qianguo earthquake. It is found that the influence of the Qianguo earthquake on the surround faults is mainly Coulomb stress decrease, such as the Changchun-Siping fault and the Mishan-Dunhua fault. However, the Coulomb stress change on the yilan-yitong fault is increase, between +0.002 to +0.004bar.