邢台地震以后,我国的地震工作者把探矿用的四极对称电阻率法用于探索地震预报,经过这些年来的实践检验,已经清楚地看出该法存在着严重的地表干扰。由于引起地下电阻率变化的原因是多种多样的,所以要从复杂的干扰中分离出因孕育地震而引起的百分之几甚至更小的电阻率变化是困难的。在目前状况下, After the Xingtai earthquake, the earthquake workers in our country used the quadrupole symmetrical resistivity method for prospecting to search for earthquake prediction. After years of practical tests, it has been clearly seen that there are serious surface disturbances in this method. Because of the variety of causes of underground resistivity changes, it is difficult to isolate from the complex disturbances a few percent or less of the change in resistivity due to earthquakes. In the current situation,