本文从中国东北地区已发生的37次破坏性地震勾绘的13次等烈度线图中,发现极震区长轴方向主要集中分布在北北东和北西西两个方位上。联系本区发生的浅源破坏性地震,这种方向性与其发震构造方向具有一致性。这在地震中长期预报研究方面具有一定的实际意义。 In this paper, from the 13 intensity maps of the 37 devastating earthquakes that have occurred in northeastern China, it is found that the major axis of the major earthquakes is mainly concentrated in the two north and north east and north west. In connection with the shallow destructive earthquakes that occurred in this area, this directionality is consistent with the direction of its seismogenic structure. This is of some practical significance in the study of long-term prediction of earthquakes.