广西浦北寨圩水井变混异常核实与分析  

Investigation and Analysis of a Well Water Turbidity Abnormality in Zhaixu Town, Pubei County, Guangxi Zhuang Autonomous Region

作　　者：莫佩婵 文翔 聂冠军 周斌 

机构地区：[1]广西壮族自治区地震局,南宁530022

出　　处：《华南地震》2017年第3期110-116,共7页South China Journal of Seismology

摘　　要：2016年12月8日广西浦北县寨圩镇民用井出现井水变混异常,鉴于1958年9月25日广西灵山M_S5.8级地震前该水井也出现过类似现象,对此广西地震局高度重视,12月8日派出工作组赶赴现场对异常调查核实。通过对该异常点进行现场勘查与调研,取样分析井水水质、气体等指标,并结合以异常点为中心开展的流动重力加密观测结果,综合分析认为水井异常与围岩裂隙发育、大气降雨及火烧山林有关,非地震前兆异常。此项工作成果可为今后地震异常核实提供借鉴与参考。A civil well water suddenly became muddy in Zhaixu town, Pubei county, Guangxi Zhuang Autonomous Region on December 8th, 2016. As there had been similar phenomenon in the well before the Guangxi Lingshan M_S5.8 earthquake in September 25th, 1958, the well abnormality also caused great concern.A working team had been sent to the scene to carry out investigation. Through the study of the field exploration and research of the abnormal points, sampling analysis such as well water, gas, water quality indexes, and combined with results of mobile gravity observation, the authors think the well abnormality may had related to fracture of surrounding rocks, atmospheric precipitation and forest fire, and was not seismic precursoryphenomenon. This work can provide reference for the future seismic anomaly verification.

关 键 词：井水浑浊 水氡 多组分气体 流动重力 异常核实 

分 类 号：P315.7[天文地球—地震学]