Abstract: Based on the observations of four major shocks, nonlinear correlations between the anomalous amplitude of precursory information and epicentral distance are discussed in this paper. It is found that the maximal anomalies are not often at epicentre but on the edge of the source area. It is suggested that the gaps enclosed by the anomalous peaks can be used to predict occurrence of an earthquake.

摘要： 本文依据4个大震的实际观测资料讨论了地震前兆异常幅度随震中距成非线性变化的现象,发现其异常幅度峰值往往并不位于震中,而是位于震源体边缘地带。进而首次提出利用这种地震前兆异常幅度峰值围空作为预报地震发生地点的一种可能途径。