山西地堑带位于华北地区西部,是华北地区强烈地震活动带.大多数破坏性地震呈北东或北西向有规律的分布于地堑中,尤其六级以上破坏性地震,分布更为明显,所以地震的分布与强烈活动的地堑构造有明显关系.地震是地壳运动的一种表现形式,它必须服从于构造运动的规律.地震的发生发展取决于受力状态及物质条件,即取决于作用力的大小、方向和速度以及介质 Shanxi graben is located in the western part of North China and is a strong seismic activity belt in North China.Most of the destructive earthquakes are distributed regularly in the graben in the northeast or northwest direction, especially the destructive earthquakes with magnitude more than 6, Therefore, the distribution of earthquakes is obviously related to the highly active graben.The earthquakes are a manifestation of crustal movement and must obey the law of tectonic movement.The occurrence and development of earthquakes depend on the state of stress and the material conditions, which depend on The size, direction and speed of the force, as well as the medium