摘要
介绍了2013年3月29日昌吉市、乌鲁木齐县交界M_S5.6地震和2013年8月30日乌鲁木齐M_S5.1地震参数、地震序列特征、震源机制解,分析了两次地震前震源区周围的地震活动。结果表明5.6级地震地震序列是孤立型,震源断错性质为走滑型;5.1级地震地震序列类型是主余型,序列迅速衰减,震源断错性质为倾滑型。震前震源区存在地震平静、地震条带、小震群、中等地震活动增强等异常。
This paper introduced basic parameters,earthquake sequence characteristics and focal mechanism solution of Changji-Urumqi earthquake with M_S5. 6 on March 29 th,and Urumqi earthquake with M_S5. 1 on August 30th2013. Analysis of seismic activity around the epicenter showed that seismic sequence with M_S5. 6 belonged to isolated earthquake type,while focal dislocation property was strike slip type. Seismic sequence with M_S5. 1 was major-aftershock type,sequence decayed rapidly and focal dislocation property was dip slip type. There were mid-short term anomalies such as seismic gap with M_S4. 0,seismic quiescence,and moderate earthquakes enhancement before two earthqukes.
出处
《内陆地震》
2016年第1期56-65,共10页
Inland Earthquake
