2019年2月2日新疆塔城M_S5.2地震房屋震害特点与发震构造  

Seismic Disaster Characteristics of Buildings and Seismogenic after the Xinjiang M_S5.2 Earthquake on February 2, 2019

作　　者：黄帅堂 马建 常想德[1] 阿里木江·亚力昆[1] 任静[2] Huang Shuaitang;Ma Jian;Chang Xiangde;Alimujiang·Yalikun;Ren Jing(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,China;China Earquake Networks Center,Beijing 100045,China)

机构地区：[1]新疆维吾尔自治区地震局,乌鲁木齐830011 [2]中国地震台网中心,北京100045

出　　处：《震灾防御技术》2020年第2期339-348,共10页Technology for Earthquake Disaster Prevention

基　　金：中国地震局地震预测研究所基本科研业务费专项重点项目(援疆项目)(2016IES0103);地震应急青年课题(CEAEDEM201916);新疆地震局局基金课题(201910)。

摘　　要：2019年2月2日新疆塔城市发生M_S5.2地震,根据现场震害调查确定本次地震极震区烈度为Ⅵ度。地震造成震中附近20世纪八、九十年代建造的个别土木结构房屋出现中等程度以上破坏,少数轻微破坏(含旧裂缝加宽),多数基本完好;其他结构类型房屋多数基本完好。本次地震震级小、有感范围广,震区土木结构房屋缺少抗震措施、年久失修、地基处理不当是造成房屋出现破坏的主要原因。综合分析等震线分布及深部构造特征,初步判定本次地震发震构造为塔克台断裂向塔城盆地迁移、扩展的隐伏断裂。An M_S5.2 earthquake occurred on February 2, 2019 in Tacheng, Xinjiang. The earthquake intensity is VI degree. Based on a field survey and a related data analysis, we reached two conclusions. First, the earthquake didn’t cause large-scale collapse and destruction. The earthquake caused a moderate degree of damage to individual soil-wood in the 1980 s and 1990 s near the epicenter, and a few minor damages(including the increase of old cracks);most of the other types of buildings are basically intact. Although the earthquake has a small magnitude it has a wide sensible area. Lack of seismic construction measures, disrepair for years and improper foundation treatment is the main cause of damage for earthquake-stricken houses. Second, the seismogenic structure causing this earthquake was located at Tacheng basin, a hidden fault that migrated and expanded from the Taktai fault to the Tacheng Basin.

关 键 词：塔城M_S5.2地震 房屋破坏 震害特点 发震构造 

分 类 号：P315.9[天文地球—地震学]