摘要
介绍了2016年12月8日呼图壁M_S6.2地震基本参数、地震构造背景、震源机制解、地震序列特征和震前部分地震学异常。研究表明:(1)呼图壁6.2级地震发生在北天山山麓地带,地震的发震断层可能为NWW走向、具有逆冲性质的清水河子断裂。(2)本次地震破裂以逆冲为主,与发震构造清水河子断裂的断错性质一致。(3)呼图壁6.2级地震序列类型为主余型。(4)呼图壁6.2级地震前存在围空、异常增强区和条带等中短期地震活动性异常,但是没有短临异常。
Introduced basic parameters,seismic structure,focal mechanism solutions,earthquake sequence characteristics and some seismological anomalies of Hutubi earthquake with MS6. 2. Research indicated:( 1) The earthquake occurred in North Tianshan Mountains foothills,Qingshuihezi fault which had reverse fault type and trend was NWW.( 2) The earthquake rupture was mainly driven by thrust,and it was consistent with Qingshuihezi fault.( 3) The earthquake sequence type was mainshock-aftershock.( 4) There were 2 mid-term anomalies and 1 short-term anomaly,mid-term anomalies were seismic gap of MS4. 0 and abnormal enhancement area,short-term anomaly was seismic belt of MS2. 0.
作者
高荣
刘建明
姚远
GAO Rong LIU Jian-ming YAO Yuan(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011 ,Xinjiang, China)
出处
《内陆地震》
2017年第3期242-252,共11页
Inland Earthquake