摘要
2013年12月16日巴东县发生Ms5.1级地震,震中区记录到大量余震,余震的频次、强度随时间呈起伏衰减。地震在空间上近NEE向分布,集中于高桥断裂南端及大坪断裂附近,M L2级以上地震的震源深度分布在5-7 km之间。综合震中区的地质构造背景及时序分析、地震精定位、地震频谱分析及震源机制解等研究结果判定巴东Ms5.1地震为层间滑脱型水库地震。
The MsS. 1 earthquake occurred on December 16, 2013, Badong Country. The epicentral area has recorded a large number of aftershocks. The frequency and magnitude of the aftershocks were attenuated ups and downs. The Ms5. 1 earthquake event located in NEE direction near the southern tip of Gaoqiao fault and Daping fault. The depth of earthquake that greater than or equal to ME2 were mainly distributed in 5 to 7 km. According to the geological structure background of the event and the results of earthquake time series analysis, precise positioning, the spectrum analysis and focal mechanism solutions, the Ms5.1 earthquake is interlayer slip type reservoir earthquake.
出处
《大地测量与地球动力学》
CSCD
北大核心
2014年第3期10-14,共5页
Journal of Geodesy and Geodynamics
基金
中国长江三峡工程开发总公司专项(SXSN/3354)
中国地震局地震研究所所长基金项目(IS201226108
IS201246114)
关键词
地震序列
精定位
震源体
频谱
震源机制
earthquake sequence
precise positioning
source body
spectrum
focal mechanism solution
