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本文处理分析了震级5.1—6.9的16个地震前后震中附近地电阻率观测资料和其他有关资料,发现ρ_s异常有效范围距震中在100公里左右;ρ_s异常表现下降(多数台ρ_s异常形态)或上升(少数)的趋势性变化形态;ρ_s异常持续时间的对数与震级之间的关系呈线性条带型。文中还讨论了ρ_s异常与震源应力场及其他前兆异常的一致性和ρ_s异常受地电年变化干扰影响的程度。
In this paper, we analyze and analyze the earth resistivity data of 16 earthquakes before and after the epicenter 5.1-6.9 and other relevant data. We find that the effective range of ρ_s is about 100 km away from the epicenter; ρ_s anomaly (or most of the ρ_s anomaly) (Minority). The relationship between logarithm of ρ_s anomaly duration and magnitude is linear. The paper also discusses the consistency of ρ_s anomaly with source stress field and other precursory anomalies and the degree of ρ_s anomaly affected by the annual change of geoelectric power.