近几年来,国内外地震工作者对震群的研究给予了极大注意,同时对它的特点进行过很多讨论,然而对于其发生的机制涉及不多。木文在前人研究的基础上,试图从震源物理的角度对震源外围区高b值震群的基本特点及其与主震之间的联系进行探讨,并给出一种物理解释。 In recent years, earthquake researchers at home and abroad have paid great attention to the study of earthquake swarm, and have discussed many of its characteristics at the same time. However, there are not many mechanisms involved in this study. On the basis of predecessors’ research, Mu Wen attempts to discuss the basic characteristics of the high b value swarm in the periphery of the focal point and its relation with the mainshock from the point of view of source physics and give a physical explanation.