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通过对日本兵库县南部７．２级地震和关东地区强震前的正、负地震演变过程的研究发现：大部分强震震源及附近地区内，震前某一时段、某一震级以上地震主要为正地震，形成正地震集中时段，主震一般位于正地震分布区内或边缘；在主震前数个月内一般发生负地震（不排除正地震），同时响应比值在震前存在降低的过程，这可能是孕震过程进入短期阶段的一种表现．这些特征对未来地震的发生区域和发生时间预测可提供一些参考，并对日本关东地区１９９６年９月１１日６．６级地震的发生区域和发生时间的特征进行了初步研究．
Through the study of the magnitude 7.2 Earthquake in southern Hyogo, Japan and the positive and negative earthquakes before the strong earthquakes in the Kanto region, it is found that most of the earthquakes in the vicinity of the earthquake source and in the vicinity of the earthquakes occurred sometime before the earthquake, Mainly positive earthquakes, forming a positive earthquake focus period, the main shock is generally located in the positive earthquake distribution or edge; within a few months before the main shock generally negative (not excluding positive), while the response ratio decreased before the earthquake This may be a manifestation of the short-term phase of the seismogenic process. These characteristics can provide some references for the prediction of the occurrence area and occurrence time of the future earthquakes. The characteristics of the occurrence area and occurrence time of the M6.6 Earthquake on September 11, 1996 in the Kanto region of Japan were studied.