【摘要】 为了正确评价天津宝坻地震台地电阻率的观测效能,调查分析了宝坻地震台地电阻率观测场地和观测系统,统计分析了观测数据的产出和映震效能。结果表明:宝坻地震台地电阻率观测场地、观测系统等基本符合观测规范的要求;观测数据连续、可靠,但精度却有逐年下降的趋势;观测数据对华北北部多个5.0级以上地震和本区及邻近地区多个3.0级以上地震有震前异常反应。宝坻地震台地电阻率观测场地能反映出地震孕育的信息,产出的数据连续、可靠,映震能力较强,但随着城市建设进程的加剧,原良好观测环境有逐渐丧失的可能。更多还原

【Abstract】 In order to evaluate observational efficiency of earth resistivity in Baodi station,this paper analyzed observation site and system of earth resistivity.The result shows: the observation site and system of earth resistivity in Baodi station meet the requirement of the observation standard;the data is consistent and reliable but accuracy is descending year after year;the data has anomalies before earthquakes with MS≥5.0 in North China and earthquakes with MS≥3.0 nearby.The observation site of earth resistivity in Baodi station can reflect earthquake preparation;the observation data is consistent and reliable.With the development of city construction,the observation environment is getting worse.更多还原