地震地磁观测与研究2017，Vol.38Issue(6)：21-25,5.DOI:10.3969/j.issn.1003-3246.2017.06.004
赣北地区中小地震震源机制分析
Analysis on the focal mechanism of medium-small earthquakes in the northern area of Jiangxi Province
摘要
Abstract
Using the method of Snoke, focal mechanism solution for 11 medium-small earthquakes with ML≥3.0 were calculated in northern area of Jiangxi Province since 2008 to 2015. The result showed thatP axis andT axis accorded with tectonic stress ifeld in this area. In the northern area of Jiangxi Province, tectonic stress ifeld was composed by compressive stress in EW direction and tensile stress in NS direction. Fault zones were dominated by strike-slip fault and normal fault. Jiujiang-Ruichang area was controlled by Xiangfan-Guangji fault zone and Tanlu fault zone, it was easy to take the strike-slip earthquakes under tectonic stress ifeld with stability direction.关键词
Snoke方法/震源机制/构造应力场/断裂带Key words
focal mechanism/ifrst motion/amplitude ratio/tectonic stress ifeld/fault zone引用本文复制引用
陈浩,肖孟仁,项月文,李传江..赣北地区中小地震震源机制分析[J].地震地磁观测与研究,2017,38(6):21-25,5.基金项目
测震台网青年骨干培养专项(项目编号:20160515) （项目编号:20160515）
