2022年四川泸定M_(S)6.8地震人员震亡特征分析  

Features of the Casualty by the 2022 Luding,Sichuan M_(S)6.8 Earthquake

作　　者：许娟 赵雪慧 周琪 肖本夫 毛利[1] 肖术连[1] 周妍 XU Juan;ZHAO Xuehui;ZHOU Qi;XIAO Benfu;MAO Li;XIAO Shulian;ZHOU Yan(Sichuan Earthquake Agency,Chengdu 610000,Sichuan,China)

机构地区：[1]四川省地震局,四川成都610000

出　　处：《地震研究》2023年第4期603-610,共8页Journal of Seismological Research

基　　金：国家重点研发计划项目(2019YFC1509402);四川省地震局科技创新团队(201902);四川省地震局地震科技专项(LY2208);四川省地震局地震科技专项(LY2210);地震应急青年重点任务(CEAEDEM202216).

摘　　要：基于系统整理的2022年四川泸定M_(S)6.8地震中93名遇难人员资料,探讨人员震亡与烈度分布、地域分布、社会特征等要素的关系,通过与2017年四川九寨沟7.0级地震人员震亡进行对比,分析本次地震人员震亡的特征。结果表明:泸定M_(S)6.8地震人员震亡数量大,主要因地质灾害所致,分布方向基本上与烈度区长轴方向一致,中老年段震亡比高,以本地户籍为主。灾区地质灾害发育、地形地貌特殊、房屋抗震性能不高、地震强度大等是此次地震人员震亡多的主要原因。川西高山高原地区人员震亡具有明显的地域特征。This paper collects the detailed information about the Luding M_(S)6.8 earthquake mortalities,discusses the casualties related with factors like the intensity,geographical distribution and social characteristics of the victims,and also compares the features of the mortalities in the Luding M_(S)6.8 earthquake with the ones in the Jiuzhaigou M_(S)7.0 earthquake.The results show in the Luding M_(S)6.8 earthquake,the death is mainly due to the seismogeological disasters,the earthquake death toll is high and the victims are located mainly in accordance with the direction of the long-axis of intensity zones.Among the victims,the middle-aged and the elderly people account for a high proportion.Most of the victims are local residents.The following factors such as the geological hazard potential,the special geographic and geomorphic conditions,the buildings'poor aseismic performance,and the high seismic intensity result in heavy casualties.

关 键 词：泸定地震 人员震亡 地质灾害 抗震性能 

分 类 号：P315.9[天文地球—地震学]