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本文在蒐集大量地质和地震活动资料的基础上,分析了上海及邻近地区的地质构造和地震活动的特征。文章讨论了上海及邻近地区地震活动的特点、地震地质背景、新构造运动的表现、活动性断裂对地震的控制作用,并初步划分了地震带、探讨了发震的构造部位及震源机制的现代构造应力场。文章指出,本区地震主要受北东向、北西向和近东西向三组断裂活动的控制,上海地区的断裂在近代显示了一定的活动性,从地震地质角度考虑,上海市有必要进一步加强抗震防震工作。
Based on the collection of a large number of geological and seismic data, this paper analyzes the characteristics of geological structure and seismic activity in Shanghai and its adjacent areas. This paper discusses the characteristics of seismic activity in Shanghai and its adjacent areas, the seismic geological background, the performance of neotectonic movement, the controlling role of active faults on earthquakes, and the initial division of seismic zones. The paper discusses the tectonic parts of the earthquakes and the focal mechanisms of modern Structure stress field. The article points out that the earthquakes in this area are mainly controlled by three groups of fault activities in the north, northwest and near east-west faults. The faults in Shanghai show some activity in recent years. From the point of view of seismic geology, Shanghai needs to be further strengthened Earthquake shock work.