我省属东南地洼区的一部分,地质构造比较复杂,主要有近东西向、北东向(包括北北东向)和北西向三大构造体系。但与破坏性地震有关的孕震构造主要是北东向,特别是其中之北北东向断裂构造,其次是东西向。北西向断裂虽较活跃,但规模小,一般为发震构造。在地震关系密切的晚第三纪以来的新构造运动,比沿着上述老断裂带继承活动为主。但各断裂带及其不同地段活动强度则有较大的差别。 My province is a part of the southeastern depression, the geological structure is more complicated, mainly in the near east-west, north-east (including north-east) and northwest three major tectonic systems. However, the seismogenic structures related to destructive earthquakes are mainly northeastward, especially the north-north-east fault and the second is east-west. Although the northwest fault is more active, it is small in scale and generally occurs in seismogenic structures. The neotectonic movement since the late Quaternary was closely related to the succession activity along the old fault zone. However, there is a big difference in the activity intensity of each fault zone and its different locations.