青海拦隆口地电阻率异常变化分析  

ANOMALY ANALYSIS OF GEO-ELECTRICAL RESISTIVITY OBSERVATIONS OF LANLONGKOU SEISMIC STATION

作　　者：李霞[1] 冯丽丽[1] 赵玉红[1] 刘磊[1] LI Xia;FENG Lili;ZHAO Yuhong;LIU Lei(Qinghai Earthquake Agency,Xining 810001,China)

机构地区：[1]青海省地震局,青海西宁810001

出　　处：《高原地震》2020年第2期9-13,共5页Plateau Earthquake Research

基　　金：2020年度震情跟踪定向工作任务(项目编号:2020010417)资助。

摘　　要：提供连续、可靠的前兆观测数据是监测工作的核心,得到包含地球物理信息的观测数据是监测工作的主要目标,因此排除干扰因素对前兆观测数据的影响,获取与地震前兆异常有关的信息是研究的关键。对2018年6月拦隆口地震台地电阻率异常变化进行了分析,经排查观测系统和测区周围环境,并对比降雨量影响,认为地电阻率大幅度的破年变变化由环境干扰引起,前兆异常的可能性不大。It is a very important fundamental work in earthquake monitoring to exclude the effect of interferences from precursor observation,thus acquires the precursory anomaly information related to earthquake and provide continuous and reliable precursor observation data.This paper study and discuss on geo-electrical resistivity anomaly change of Lanlongkou seismic station in June,2018.After the investigation and analysis about observation working system,observation environment interference and meteorological factors,we think the abnormal change was mainly caused by road construction interference with little probability of precursor anomaly.

关 键 词：拦隆口地震台 地电阻率 异常分析 

分 类 号：P315.72[天文地球—地震学]