Tectonic Background of the Yutian M_S7.3 Earthquake in 2014 and Its Relationship with the Yutian M_S7.3 Earthquake in 2008

作     者：Cheng Jia Liu Jie Sheng Shuzhong Yao Qi Liu Daiqin 

作者机构：China Earthquake Networks Center Institute of Disaster Prevention Earthquake Administration of Xinjiang Uygur Autonomous Region 

出 版 物：《Earthquake Research in China》 (中国地震研究（英文版）)

年 卷 期：2015年第29卷第1期

页      面：30-37页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：funded by the Spark Program of Earthquake Science of China(XH15047Y) the National Science Foundation of China(41404043) 

主　　题：The Yutian Ms7. 3 earthquake on February 12 2014 Tectonic backgroundSeismogenic fault The Yutian Ms7. 3 earthquake in 2008 

摘      要：The regional tectonic background and characteristics of active faults of the Yutian MS7.3earthquake on February 12,2014 are discussed in this *** the analysis of the epicenter area of the MS7.3 earthquake in 2014 and the focal mechanisms of the former strong earthquakes around it,the authors deduced that the seismogenic fault of the MS7.3earthquake is the east branch of the Ashikule *** MS7.3 earthquake in 2014 and the MS7.3 earthquake in 2008 are two strong earthquake events on the different sections of the Altun Tagh fault,where the fault behavior changes from sinistral slip to normal faulting because of the extensional tail effects in the southern end of the Altun Tagh *** is concluded that the two MS7.3 earthquakes have the same dynamic source,and the MS7.3earthquake in 2008 promoted the occurrence of the MS7.3 earthquake in ***,we calculate the Coulomb stress change to the seismogenic fault of the MS7.3 earthquake in2014 from the MS7.3 earthquake in 2008 using the layered crust *** result also shows that the MS7.3 earthquake in 2008 accelerated the occurrence of the MS7.3earthquake in 2014.