2014年2月12日新疆于田M_S7.3地震发震构造初步研究  

PRELIMINARY STUDY ON SEISMOGENIC STRUCTURE OF YUTIAN M_S7.3 EARTHQUAKE ON FEB. 12,2014

作　　者：姚远[1] 伊力亚尔.阿不力孜 吴传勇[1] 吴国栋[1] 陈建波[1] 

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2014年第2期121-126,共6页Inland Earthquake

基　　金：地震科技星火计划(XH13026Y);新疆地震科学基金(201308)联合资助

摘　　要：2014年2月12日新疆和田地区于田县MS7.3地震发生在塔里木盆地的南边,昆仑山区海拔4 500 m左右地带,青藏高原边界的阿尔金断裂带。阿尔金断裂带属于大陆内巨型断裂带,绵延1 600 km,此次地震位于阿尔金断裂带的西南段,震区内断裂带呈放射状,由多条断裂构成,规模较大,根据震源机制解得到本次地震为左旋走滑破裂形式。结合GF-1高分辨卫星数据,对比震前、后影像,在硝尔库勒盆地南缘断裂带发现一系列新的地表破裂带。On February 12, 2014, an earthquake with magnitude Ms7.3 occurred in Yutian County in Hetian region of Xinjiang. The earthquake occurred in the south of Tarim Basin, at altitude about 4 500 m fracture zone of Kunlun mountain, Ahyn Tagh fault of the Tibetan Plateau edge. Arkin fracture zone belongs to the continental giant fault belt about 1 600 km, the earthquake is located in the southwest section of the Arkin fracture zone, the fault in the earthquake zone consists of several large scale structure and goes radically. According to the focal mechanism solution, the rupture form is sinisterly strike slip. Combined with GF-1 high resolution satellite data, image contrast before and after the earthquake, there is a series of surface rupture zone in southern Xiaoerkule basin.

关 键 词：2014年于田Ms7 3地震 发震构造 阿尔金断裂带 

分 类 号：P315.9[天文地球—地震学]