地震学报2011，Vol.33Issue(5)：595-604,10.DOI:10.3969/j.issn.0253-3782.2011.05.004
震源参数因素对玉树地震库仑破裂应力图像及其与余震活动统计关系的影响
Influence of source parameters of the 2011 Yushu earthquake on its Coulomb failure stress calculation and on aftershock activity
摘要
Abstract
On April 14, 2010, the Yushu MS7. 1 earthquake occurred in Qinghai Province, China. Based on five sets of source parameters published by three institutions at home and abroad, we calculated Coulomb failure stress (CFS) change induced by Yushu earthquake occurrence, and studied the influence of different source parameters on the calculated CFS change and its statistic relation with aftershocks. The result shows that the calculated CFS change patterns are different due to different source parameters, thus the relation between CFS change and aftershock activity is affected. In the source parameters the influence of fault slip angle and dislocation is greater than that of other parameters.In addition, the time length for making aftershock statistical analysis also affects the relation between CFS change and aftershock activity.关键词
青海玉树Ms7.1地震/震源参数影响/库仑破裂应力变化/余震活动Key words
Yushu MS7. 1 earthquake/ influence of source parameters/ Coulomb failure stress change/ aftershocks分类
天文与地球科学引用本文复制引用
王莹,吴小平,赵韬..震源参数因素对玉树地震库仑破裂应力图像及其与余震活动统计关系的影响[J].地震学报,2011,33(5):595-604,10.基金项目
国家自然科学基金项目(41074044,40764001)资助. （41074044,40764001）
