文章摘要

文章信息/Info

Title:: Features of the Casualty by the 2022 Luding,Sichuan M_S6.8 Earthquake

Author(s):: XU Juan; ZHAO Xuehui; ZHOU Qi; XIAO Benfu; MAO Li; XIAO Shulian; ZHOU Yan; (Sichuan Earthquake Agency,Chengdu 610000,Sichuan,China)

Keywords:: the Luding M_S6.8 earthquake; earthquake-caused casualties; geological disaster; aseismic performance

摘要:: 基于系统整理的2022年四川泸定M_S6.8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_S6.8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。

Abstract:: This paper collects the detailed information about the Luding M_S6.8 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_S6.8 earthquake with the ones in the Jiuzhaigou M_S7.0 earthquake.The results show in the Luding M_S6.8 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.