贵州省地震活动性研究  

Research on the seismicity of Guizhou Province

作　　者：罗丹芩 罗祎浩 纪星星 李世杰 LUO Danqin;LUO Yihao;JI Xingxing;LI Shijie(Guizhou Institute of Seismic Engineering,Guiyang 550001,China)

机构地区：[1]贵州省工程防震研究院,贵州贵阳550001

出　　处：《贵州科学》2020年第6期33-37,共5页Guizhou Science

基　　金：“垭都-紫云断裂对地震的控制作用研究”黔科合支撑〔2017〕2818;“六盘水市活动断层探测项目”黔科合支撑〔2020〕4Y053号;“贵州省工程防震研究院地震地质院士工作站”,合同编号:黔科合平台人才〔2016〕5601。

摘　　要：贵州省位于南北地震带南端,省内发育多条断裂,主要受紫云-垭都断裂带控制,构造活动较强烈,地震活动水平处于中等水平[1]。贵州省受地势影响,高原山地较多,房屋公路桥梁等建筑多位于山间,民众震防意识较薄弱,一旦发生地震,会严重影响经济发展和社会稳定,因此值得关注该省的地震活动性。通过收集贵州省历史破坏性地震和1970年以来中小地震,分析了省内最小完整性震级时间、空间分布特征,对贵州省进行分区研究,统计分析了地震活动性参数,探讨了地震活动规律性、地震分布特征及未来地震活动趋势。研究结果可供贵州省地震活动性分析和地震危险性分析参考。Guizhou Province is located in the southern part of the north-south seismic belt,and there are many faults in the province,which are mainly controlled by the Ziyun-Yadu Fault Zone.The tectonic activity is relatively strong,and the seismic activity is at middle level.Guizhou is affected by the terrain.There are many highlands and mountains.Many buildings,such as houses,roads and bridges,are built in the mountains.People's awareness of earthquake prevention is low.Once an earthquake occurs,it will seriously affect the economic development and social stability,so it is worth paying attention to the seismicity of the area.In this paper,the historical destructive earthquakes and the medium and small earthquakes since 1970 in Guizhou Province are collected,the time and space distribution characteristics of the minimum integrity magnitude in Guizhou Province are analyzed,the regionalization research is carried out,the seismicity parameters are statistically analyzed,and the seismicity regularity,seismicity distribution characteristics and future seismicity trend are discussed.The research results of this paper can be used as a reference for seismicity analysis and seismic risk analysis in Guizhou Province.

关 键 词：贵州 地震 活动性 时空分析 

分 类 号：P511.2[天文地球—地质学]