| 引用本文： |
-
蒙陆斌,聂冠军,赵修敏.广西靖西Ms5.2级地震基本情况与灾害特征分析[J].广西科学,2020,27(6):655-666. [点击复制]
- MENG Lubin,NIE Guanjun,ZHAO Xiumin.Analysis of the Basic Situation and Disaster Characteristics of Jingxi Ms5.2 Earthquake in Guangxi[J].Guangxi Sciences,2020,27(6):655-666. [点击复制]
|
|
| 摘要: |
| 2019年11月25日广西靖西市湖润镇发生Ms5.2级地震，该地震震情特征在同级地震中具有很好的代表性，是研究解剖中强地震的典型震例。本文介绍了广西靖西Ms5.2级地震的地震序列，分析此次地震的余震特征，总结此次地震震区的地质构造和地形地貌特点。通过对震区开展房屋结构、房屋震害、地震次生地质灾害等调查，评定地震烈度及灾害损失。分析表明，广西靖西Ms5.2级地震为主余震型地震，余震强度大，分布集中。此次地震烈度Ⅵ度区虽面积不大，但震害较严重。此外，分析还表明地质地貌条件和抗震设防的差异会造成较大的震害差异。 |
| 关键词: 靖西地震 灾害调查 震害特征 岩溶地区地震 地震烈度 |
| DOI：10.13656/j.cnki.gxkx.20210119.007 |
|
| 基金项目:中国地震局地震科技星火计划项目（XH192001Y）和广西重点研发计划项目（2018AB67009）资助。 |
|
| Analysis of the Basic Situation and Disaster Characteristics of Jingxi Ms5.2 Earthquake in Guangxi |
|
MENG Lubin1, NIE Guanjun1,2, ZHAO Xiumin1,2
|
| (1.Earthquake Administration of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, 530022, China;2.Guangxi Engineering Earthquake Protection Research Institute, Nanning, Guangxi, 530022, China) |
| Abstract: |
| On November 25,2019,a Ms5.2 earthquake occurred in Hurun Town,Jingxi City,Guangxi Province.The seismic characteristics of this earthquake were very representative among earthquakes of the same magnitude,and it was a typical example for studying and dissecting moderate strong earthquakes.This paper introduced the earthquake sequence of Jingxi Ms5.2 earthquake in Guangxi,analyzed the aftershock characteristics of the earthquake,and summarized the geological structure and topographic features of the earthquake area.Through the investigation of building structure,building damages and secondary geological disaster in the earthquake area,the earthquake intensity and disaster loss were evaluated.The analysis showed that Jingxi Ms5.2 earthquake in Guangxi was the main aftershock type with large aftershock intensity and concentrated distribution.Although the seismic intensity Ⅵ area was small,the earthquake damage was serious.In addition,it indicates that the differences of geological and geomorphic conditions and seismic fortification will cause great differences in seismic damage. |
| Key words: Jingxi earthquake disaster survey earthquake damage characteristics earthquake in karst area earthquake intensity |
