甘肃省阿克塞5.5级地震震害调查与启示

马小平; 朱瑞; 寇恒; 刘岸果; 张晓; 张卫东

doi:10.11899/zzfy20220214

甘肃省阿克塞5.5级地震震害调查与启示

doi: 10.11899/zzfy20220214

甘肃省地震局, 兰州 730000

基金项目: 地震科技发展计划青年基金（2018Q02）；国家重点研发计划（2017YFC1500906）

详细信息

作者简介:
马小平，男，生于1989年。工程师。主要从事地震应急工作。E-mail：545355351@qq.com

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- 文章访问数: 171
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- PDF下载量: 23
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出版历程
- 收稿日期: 2021-11-12
- 刊出日期: 2022-06-30

Investigation and Enlightenment of Earthquake Damage Caused by Akesai M5.5 Earthquake in Gansu Province

Gansu Earthquake Agency, Lanzhou 730000, China

摘要

摘要: 2021年8月26日甘肃省酒泉市阿克塞哈萨克族自治县（38.88°N， 95.50°E）发生5.5级地震，震源深度15 km，震中烈度为Ⅶ度，震区总面积为1 352 km²，距震中30 km处存在烈度异常点。本次地震震害较轻，未造成人员伤亡，经济损失较轻。本文从地震应急响应、现场震害调查、建筑物破坏情况调研、烈度评定、灾害损失评估等方面对本次地震震害特点进行分析总结，对造成震害的致灾因素进行深入分析，得出震害经验和相应的防震减灾启示，以便本地区查找防震减灾不利因素，进而采取属地化措施，尽可能减轻未来地震灾害损失。
- 阿克塞5.5级地震 /
- 地震现场 /
- 震害调查 /
- 应急响应 /
- 地震启示
Abstract: On August 26, 2021, an earthquake of magnitude 5.5 occurred in Akesai County, Jiuquan City, Gansu Province (38.88°N, 95.50°E), with a focal depth of 15km and the epicenter intensity is VII. The total area of the earthquake area was 1 352 km², and there was an anomaly of intensity 30 km away from the epicenter. The earthquake caused less damage, no casualties and less economic losses. In this paper, the characteristics of earthquake damage are summarized from the aspects of earthquake emergency response, on-site earthquake damage investigation, building damage investigation, intensity assessment, disaster loss assessment, etc., and the disaster-causing factors are deeply analyzed. The experience of earthquake damage and the corresponding enlightenment of earthquake prevention and disaster reduction are obtained. These experiences and enlightenment will help to find out the unfavorable factors of earthquake prevention and disaster reduction in this region, and then take localized measures to minimize future earthquake losses. At the same time, it also provides scientific basis and theoretical basis for government departments to prevent and resolve future major earthquake disasters, and provides reference for future field investigation and earthquake damage research of moderate and strong earthquakes, which has important social value.
- Akesai M5.5 earthquake /
- Earthquake site /
- Earthquake damage investigation /
- Emergency response /
- Earthquake enlightenment

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图 1 甘肃省阿克塞5.5级地震烈度

Figure 1. Intensity map of Akesai M5.5 earthquake in Gansu province

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图 2 震区行政区划

Figure 2. Administrative division map of earthquake

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图 3 震区地质构造

Figure 3. Geological structure map of earthquake area

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图 4 地震震源机制解

Figure 4. Earthquake focal mechanism solution

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图 5 Ⅶ度区破坏情况

Figure 5. Destruction situation in Ⅶ

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图 6 Ⅵ度区破坏情况

Figure 6. Destruction situation in Ⅵ

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