【摘要】 介绍了通渭地电阻率台观测系统及年变情况,分析了近几年通渭台地电阻率观测资料,认为通渭地电阻率能够反映地球内部异常信息。在岷县漳县M_S6.6地震前通渭地电阻率观测资料出现了破年变异常变化,并且不同测道地电阻率在临震前呈现出不同的变化特征,是夹杂着干扰的地震前兆异常。更多还原

【Abstract】 Observation system and annual variation of geoelectric resistivity at Tongwei station were introduced,and geoelectric resistivity data in recent years was analyzed. It found that geoelectric resistivity changes at Tongwei station can reflect earth internal anomaly information. Observation data of geoelectric resistivity at Tongwei station showed break rule of annual anomaly before Minxian Zhangxian earthquake with M_S6. 6,and different measuring channels performed different variation of geoelectric resistivity impending earthquake. It should be earthquake precursor anomaly with interference.更多还原