地震研究

基于系统整理的2022年四川泸定MS6.8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MS6.8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 MS6.8 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 MS6.8 earthquake with the ones in the Jiuzhaigou MS7.0 earthquake.The results show in the Luding MS6.8 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.

引言
1 数据收集
2 人员震亡特征
3 人员震亡原因分析
4 结论

表1 泸定MS6.8地震不同烈度区震亡人数统计<br/>Tab.1 Statistics of earthquake deaths in the seismic intensity of the Luding MS6.8 earthquake

表1 泸定MS6.8地震不同烈度区震亡人数统计
Tab.1 Statistics of earthquake deaths in the seismic intensity of the Luding MS6.8 earthquake

图1 泸定MS6.8地震不同烈度区人员震亡空间分布<br/>Fig.1 Deaths distributed in the seismic intensity zones of the Luding MS6.8 earthquake

图1 泸定MS6.8地震不同烈度区人员震亡空间分布
Fig.1 Deaths distributed in the seismic intensity zones of the Luding MS6.8 earthquake

图2 泸定MS6.8地震前不同烈度区地质灾害点及密度统计<br/>Fig.2 Statistics of geological-hazard points before the Luding MS6.8 earthquake in the study area according to seismic intensity

图2 泸定MS6.8地震前不同烈度区地质灾害点及密度统计
Fig.2 Statistics of geological-hazard points before the Luding MS6.8 earthquake in the study area according to seismic intensity

表2 泸定MS6.8地震不同烈度区因地质灾害震亡人数统计<br/>Tab.2 Deaths from seismogeological disasters in seismic intensity zones of the Luding MS6.8 earthquake

表2 泸定MS6.8地震不同烈度区因地质灾害震亡人数统计
Tab.2 Deaths from seismogeological disasters in seismic intensity zones of the Luding MS6.8 earthquake

图3 泸定MS6.8地震不同烈度区因地质灾害人员震亡空间分布<br/>Fig.3 Deaths from seismo-geological disasters in seismic intensity zones of Luding MS6.8 earthquake

图3 泸定MS6.8地震不同烈度区因地质灾害人员震亡空间分布
Fig.3 Deaths from seismo-geological disasters in seismic intensity zones of Luding MS6.8 earthquake

表3 泸定MS6.8地震不同烈度区因房屋倒塌震亡人数及占比统计<br/>Tab.3 Deaths from buildings' collapse in seismic intensity zones of the Luding MS6.8 earthquake

表3 泸定MS6.8地震不同烈度区因房屋倒塌震亡人数及占比统计
Tab.3 Deaths from buildings' collapse in seismic intensity zones of the Luding MS6.8 earthquake

表4 泸定MS6.8和九寨沟MS7.0地震不同烈度区的震亡比<br/>Tab.4 Statistics of earthquake mortality ratio in seismic intensity zones of Luding MS6.8 and Jiuzhaigou MS7.0 earthquake

表4 泸定MS6.8和九寨沟MS7.0地震不同烈度区的震亡比
Tab.4 Statistics of earthquake mortality ratio in seismic intensity zones of Luding MS6.8 and Jiuzhaigou MS7.0 earthquake

图4 按乡镇统计泸定MS6.8地震震亡人数及占比<br/>Fig.4 Statistics of earthquake-caused deaths and their proportion in villages of the Ludian MS6.8 earthquake

图4 按乡镇统计泸定MS6.8地震震亡人数及占比
Fig.4 Statistics of earthquake-caused deaths and their proportion in villages of the Ludian MS6.8 earthquake

图5 按行政村统计泸定MS6.8地震人员震亡分布<br/>Fig.5 Earthquake deaths distributed in villages of the Luding MS6.8 earthquake

图5 按行政村统计泸定MS6.8地震人员震亡分布
Fig.5 Earthquake deaths distributed in villages of the Luding MS6.8 earthquake

图6 泸定MS6.8地震人员震亡年龄的分布<br/>Fig.6 Earthquake deaths in age groups of the Luding MS6.8 earthquake

图6 泸定MS6.8地震人员震亡年龄的分布
Fig.6 Earthquake deaths in age groups of the Luding MS6.8 earthquake

图7 按乡镇统计泸定MS6.8地震人员震亡原因<br/>Fig.7 Detailed causes of the victims in towns and in villages of Luding MS6.8 earthquake

图7 按乡镇统计泸定MS6.8地震人员震亡原因
Fig.7 Detailed causes of the victims in towns and in villages of Luding MS6.8 earthquake

图8 近十年四川省MS6.0～6.9地震人员震亡原因统计<br/>Fig.8 Statistics of the causes of death in the MS6.0-6.9 earthquakes in Sichuan over the past ten years

图8 近十年四川省MS6.0～6.9地震人员震亡原因统计
Fig.8 Statistics of the causes of death in the MS6.0-6.9 earthquakes in Sichuan over the past ten years

表5 按乡镇统计泸定MS6.8地震中因地质灾害震亡人数<br/>Tab.5 Statistics of deaths caused by seismogeological disasters in towns and in villages of Luding MS6.8 earthquake

表5 按乡镇统计泸定MS6.8地震中因地质灾害震亡人数
Tab.5 Statistics of deaths caused by seismogeological disasters in towns and in villages of Luding MS6.8 earthquake

表6 按乡镇统计泸定MS6.8地震中因房屋垮塌震亡人数及占比<br/>Tab.6 Statistics of deaths and their proportion caused by buildings' collapse in villages of Luding MS6.8 earthquake

表6 按乡镇统计泸定MS6.8地震中因房屋垮塌震亡人数及占比
Tab.6 Statistics of deaths and their proportion caused by buildings' collapse in villages of Luding MS6.8 earthquake

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备注

引言

1 数据收集

2 人员震亡特征

3 人员震亡原因分析

4 结论

期刊信息