介休井水位异常变化特征分析  

Study on the Characteristics of Abnormal Water Level Changes in Jiexiu Well

作　　者：李艳[1,2] 吕芳[1,2] 王霞[1,2] 赵凯[1,2] 穆慧敏 LI Yan;LYU Fang;WANG Xia;ZHAO Kai;MU Huimin(Shanxi Earthquake Agency,Taiyuan,Shanxi 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)

机构地区：[1]山西省地震局,山西太原030021 [2]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2024年第2期7-13,24,共8页Earthquake Research in Shanxi

基　　金：山西省地震局科研项目(SBK-2324);2023年度震情跟踪定向工作任务(2023020301);中国地震局地质研究所国家野外科学观测研究站研究课题(NORSTY2021-02);山西省基础研究计划项目(20210302124049)。

摘　　要：根据山西介休井水位2007年数字化观测以来的数据变化,梳理归纳该井水位观测曲线的正常变化形态、同震变化以及影响介休井水位变化的人为干扰和自然环境干扰因素;同时对2023年7月27日介休井水位出现的突降异常,从井区构造环境、周边地震活动、地球物理观测异常变化等方面,与典型震例前的异常变化进行对比分析,认为该异常与山西中南部中等地震前的异常在时、空、强特征方面具有较高的相似性,表明山西南部区域的构造活动、应力水平在逐步增强。Based on the data changes of the water level in the Jiexiu well in Shanxi since the digital observation in 2007,this study summarizes the normal variation patterns of the well water level observation curve,co-seismic changes,and the factors of human interference and natural environmental disturbance affecting the water level changes in the Jiexiu well.At the same time,the sudden drop in the water level of Jiexiu Well on July 27,2023,was analyzed in comparison with the typical pre-seismic abnormal changes from aspects such as the structural environment of the well area,surrounding seismic activity,and abnormal changes in geophysical observations.It is believed that these anomalies have a high similarity with the temporal,spatial,and intensity characteristics of anomalies before moderate earthquakes in the central and southern parts of Shanxi,indicating that the tectonic activity and stress level in the southern region of Shanxi are gradually increasing.

关 键 词：井水位 干扰 异常 观测数据 

分 类 号：P315.723[天文地球—地震学]