地震地磁观测与研究2017，Vol.38Issue(1)：38-42,5.DOI:10.3969/j.issn.1003-3246.2017.01.007
2015年9月14日昌黎ML4.7地震分析
Analysis of Changli ML 4.7 earthquake on Sep. 14, 2015
摘要
Abstract
An ML 4.7 earthquake occurred in Changli on Sep.14, 2015. It was undulation of the aftershocks of Tangshan M 7.8 earthquake. This article analyzed Changli ML 4.7 earthquake from the geological background, sequence, the earthquake focal mechanism solutions and seismogenic background, and discuss activity patterns of Tangshan ML 4 earthquake through old in pairs ML 4 earthquakes since 2000. The focal mechanism solutions show the principal stress direction is NE direction, Consistent with the tectonic stress field in North China.It has a good correspondence with the anomalies of tectonics parameters such as the quite of earthquake over ML 2 in Tangshan,frequency, b value and wave velocity ratio.This earthquake breaking the quasi-periodic characteristic of ML 4.0 earthquake in Tangshan, it worthy of future study.关键词
昌黎ML4.7地震/成对地震/震源机制/发震背景Key words
Changli ML 4.7 earthquake/paired earthquake/focal mechanism/seismogenic background引用本文复制引用
郭蕾,王想,宫猛,王亚茹,王晓山..2015年9月14日昌黎ML4.7地震分析[J].地震地磁观测与研究,2017,38(1):38-42,5.基金项目
2015 年河北省科技支撑计划项目(项目编号:15275402D) （项目编号:15275402D）
河北省地震局星火项目(项目编号:DZ2015017012,DZ20150420031 （）
晋冀蒙交界地区临时台网假设运行维护及地震危险和对策研究(项目编号:DZ20150428102) （项目编号:DZ20150428102）
