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本文根据上新世以来的断裂变动,火山活动、褶皱作用。地貌等方面的资料,论证了中国东部北北西——北西向构造系在新构造期的活动性及其应力场。又据地震震中分布、等震线长轴、地裂缝、地形变等方面资料,论证了北北西——北西向构造系的现代活动性及其应力场。并讨论了这一构造系与地震活动的关系。
In this paper, based on the fault changes since the Pliocene, volcanic activity, folds. Geomorphology and other aspects of the data to demonstrate the activity of the north-northwest-northwest-north tectonics in eastern China and its stress field during the new tectonic period. According to the epicentral distribution of the earthquake, the long axis of the isoseismic line, the ground fissure and the deformation of the terrain, the modern activity and stress field of the north-northwest-northwest tectonic system have been demonstrated. The relationship between this tectonic system and seismic activity is also discussed.