和平台深井地电阻率在中强地震前异常特征

The Abnormal Characteristics of Deep Well Geo-resistivity of Heping Station before Moderate Earthquakes

介绍了和平台深井地电阻率观测概况和台站附近新丰江水库区的地震活动,分析了深井地电阻率数据变化,总结了在6次M 4.0级以上地震发生前深井地电阻率的异常特征。深井地电阻率在中强地震前存在加速上升或加速下降的变化,不同的异常形态可能和地震震源机制解有关。

This paper introduces the observation of deep well geo-resistivity in Heping station and the seismic activity in Xinfengjiang reservoir area near the station, and analyzes the changes of geo-resistivity data in deep well, summarizes the abnormal characteristics of deep well geo-resistivity changes before six earthquakes with M≥4.0. The results show that the deep well geo-resistivity has accelerate up or down changes before Moderate earthquakes, which may be related to the earthquake mechanism.