大地震震源区内地震重复性的研究,直接关系到我国历史上发生过大地震的地方近百年内能否进行大规模建设。因此它是地震长期预报和烈度区划中一个很重要的问题。目前对大地震重复性的研究,国内外还持有不同的看法,大地震重复的空间概念和物理解释也有种种 The study of the earthquake repeatability in the focal area of ​​a major earthquake is directly related to whether large-scale construction can be carried out in a place that has occurred in the history of our country in the past 100 years. Therefore, it is a very important issue in long-term earthquake prediction and intensity zoning. At present, the researches on the repeatability of large earthquakes hold different opinions both at home and abroad. There are also many kinds of spatial conceptions and physical explanations of repeated earthquakes