2015年3月龙游地震台水位异常分析

摘要

针对龙游地震台水位仪观测2015年3月17日出现的台阶异常现象,对比分析该台观测井2011年6-8月水淹前后的观测资料,架设临时观测仪器进行同步观测,并进行线性测试等分析,认为龙游水位仪传感器自水井被洪水淹后,因超量程而导致损坏,水位仪观测值不能真实反映井水位变化,推断此次台阶异常并非地震前兆异常.%A series of research methods,such as comparing the water observations before and after Longyou Seismic Station was floods,simultaneous observations by interim water level meter,and linear tests,were adopted to study the steps of water observations of Longyou Seismic Station on March 17,2015,The conclusion is that the step of water level observations of Longyou Seismic Station was not seismic precursory anomaly,because the flood made the water level meter over range and damaged,so the water level meter could not correctly measure the real changes of water level.