力武常次根据已查明其特征的前兆现象,研究了预报未来地震发生的具体地点、震级和发生时间的经验方法。1987年他发表了关于预报未来地震发生的地点和震级的研究报告。本文侧重地震发生时间的预报方法。第一类和准第二类前兆的地震发生的概率力武常次(1975,1979)曾证明了关系式logT=a+bM (1) Based on the precursors that have identified its characteristics, Liwu has conducted empirical studies on the specific locations, magnitude and timing of future earthquakes. In 1987 he published a report on the prediction of the location and magnitude of future earthquakes. This paper focuses on the prediction method of earthquake occurrence time. The probabilities of earthquakes of the first and quasi-second precursors (Wu et al., 1975, 1979) have proved that the relation logT = a + bM (1)