2018年9月12日陕西宁强5.3级地震震害特征及发震构造背景  

Seismic Disaster and Seismogenic Structure of the 2018 Shanxi Ningqiang M_S5.3 Earthquake

作　　者：何玉林[1] 格桑扎西 王明明[1] 罗安元[1] 宴金旭 龙建宇 HE Yulin;GESANG Zaxi;Wang Mingming;LUO Anyuan;YAN Jinxv;LONG Jianyu(Sichuan Earthquake Agency,Sichuan Chengdu 610041,China)

机构地区：[1]四川省地震局

出　　处：《四川地震》2019年第2期27-30,共4页Earthquake Research in Sichuan

基　　金：四川省地震局地震风险评估创新团队(201802)

摘　　要：2018年9月12日在陕西省汉中市宁强县与四川省广元市交界处(32.75°N,105.69°E)发生5.3级地震。现场调查结果表明,此次地震最高烈度为Ⅵ(6)度。Ⅵ度区等震线呈椭圆状,其长轴呈北东走向,主要涉及到陕西省和四川省广元市的13个乡镇。部分震区房屋建筑出现轻微破坏现象。这次地震的发震断层是龙门山断裂带中的青川断裂。An earthquake with magnitude of M_S5.3 occurred on Sep.12,2018 in the border area between Ningqiang County,Shanxi Province and Guangyuan City, Sichuan Province. The on-site investigation shows that the maximum intensity of this earthquake event reaches Ⅵ degree. The isoseismal is generally in elliptic shape with long axis trending near NE direction. The area of Ⅵ degree includes the 13 towns of the Shanxi and Sichuan Provinces. A part of buildings in the area were Slightly damaged by this earthquake. The Qingchuan fault of the Longmenshan fault zone is the seismogenic structure for this earthquake event.

关 键 词：地震烈度 震害特征 发震构造 陕西宁强5.3级地震 

分 类 号：P315.2[天文地球—地震学] P315.94[天文地球—固体地球物理学]