论文部分内容阅读
在系统处理地电长期观测资料的基础上，研究了大同—阳高地震的地电前兆变化及大同台地电阻率反映的主压应力（变）方向。结果表明，大同—阳高地震地电前兆异常具有台项少、强度小和零散分布的特征，前兆异常似有由震中往外扩展的现象；大同台震前地电异常反映的主压应力（变）方向发生了４５．２°的明显异变。讨论了对地电地震前兆的复杂性和大同—阳高等中强地震的预报问题，认为只要认真排除干扰，系统分析处理地电的长期观测资料和正确认识异常变化，地电方法对一些中强地震作出一定程度的预测还是有可能的。
Based on the systematic processing of long-term geoelectric data, the changes of the geoelectric precursors of the Datong-Yanggao earthquake and the principal compressive stress (deformation) directions of the Datong platform resistivity are studied. The results show that the geoelectric precursory anomalies in the Datong-Yanggao Earthquake are characterized by a small number of stations, small intensity and scattered distribution. The precursory anomaly appears to be expanding from the epicenter to the epicenter. The principal compressive stress Change) direction of 45.2 ° significant change occurred. This paper discusses the complexity of the geoelectric precursors and the prediction of the Datong-Yangzhong moderate and strong earthquakes. It considers that as long as the disturbances are carefully eliminated, the long-term observation data of the geoelectric power system and the correct understanding of the abnormal changes are systematically analyzed and processed, Earthquake to make a certain degree of prediction is still possible.