摘要
分析１９９７年５月３１日福建永安５．２级地震的序列特征，论证其为一次前－主－余型地震。根据震区的构造背景、现场烈度调查、震源机制及余震分布，综合判断发震断裂为万安－古田断裂，为左旋逆断层性质。
We analysed the characteristics of Yongan M S 5 2 earthquake sequence on May 31,1997 in Fujian Province and demonstrated that it belonged to foreshock mainshohck aftershock type.According to the tectonic background in the seismic area,field investigation of intensity,focal mechanism and distributioin of aftershocks,we obtain the conclusion that the fault which led to this earthquake is Wanan Gutian left lateral thrust fault.
出处
《地震地磁观测与研究》
1999年第1期19-23,共5页
Seismological and Geomagnetic Observation and Research
