本文根据转换波近年得出的地壳构造最新资料,结合地表地质的研究成果,探讨了燕山地区地壳构造和地壳运动的基本特征,同时着重分析了怀来—宁河段北西西向地震活动带的构造特征、活动方式及其两侧的差异,进而提出了本区强震的深部构造标志,并讨论了强震孕育过程及可能的潜在震源区等问题,为研究首都圈的地震预测、预报提供基础资料。 Based on the latest information of crustal structure obtained by converted wave in recent years and the research results of surface geology, this paper discusses the basic features of crustal structure and crustal movement in Yanshan area, and analyzes the NWWestern-trending seismic activity belt in HuailaiNinghe section Characteristics, patterns of activities and the differences between the two sides, and then put forward the deep tectonic emblem of strong earthquakes in this area, discussing the process of strong earthquakes and potential potential source areas, and providing the basis for the study of earthquake prediction and forecasting in the metropolitan area data.