测量大地电阻率随时间变化以预报地震存在一些困难。例如,一些台站要在较高的干扰背景上识别地震信息,特别是浅部有高阻屏蔽层地区,在现有观测条件下,地电阻率的正常变化幅度显著且不太规则,以致无法判别异常。因此,在这种地区取得平稳的正常原始数据是重要的。 Measuring earth resistivity over time to predict the earthquake has some difficulties. For example, some stations identify seismic information on a high interference background, especially in areas with high impedance shields in shallow areas. Under the current observation conditions, the normal variation of the earth resistivity is significant and less regular, making it impossible Discriminant abnormalities. Therefore, it is important to have stable and normal raw data in such areas.