地震地磁观测与研究2017，Vol.38Issue(5)：33-38,6.DOI:10.3969/j.issn.1003-3246.2017.05.006
大同窗视应力时变特征浅析
Analysis on time-variation characteristics of the apparent stress of Datong window
摘要
Abstract
In the paper, the apparent stress of Datong window through SZZ, HSH and YAY stations is calculated and the differential apparent stress after eliminating the influence of magnitude is obtained, using the waveform data of small earthquakes from 2001 to June, 2015. The results show that: the obvious high value anomalies of differential apparent stress occurred 10 times before 5 days to 517 days of ML 5 earthquakes in Shanxi seismic belt and Zhangjiakou-Bohai seismic belt, and then recovered to background stress level after the shocks. Combined with the results of medium quality factor (Qm) recorded by SZZ station, the differential apparent stress and medium quality factor(Qm) presented the synchronous high value process which were the high values over 1 times mean square error. The variation of regional stress and medium probably reflects the mid-strong earthquakes preparation process.关键词
差视应力/介质品质因子/大同窗Key words
differential apparent stress/medium quality factor/Datong window引用本文复制引用
王霞,宋美琴,李宏伟,李丽,吴昊昱..大同窗视应力时变特征浅析[J].地震地磁观测与研究,2017,38(5):33-38,6.基金项目
山西省地震局 2016 年科研项目(项目编号:SBK-1608) （项目编号:SBK-1608）
2016 年度震情跟踪青年课题(项目编号:2016010114) （项目编号:2016010114）
