论文部分内容阅读
以震源机制解资料推演并分析了渤海海峡及其周围地区现代构造应力场的总体特征、分区差异及地震破裂性质。认为构造应力场在某些局部与大区域之间有一定差异，而主张应力轴方位参数一致性稍好些，约在３３０°～３６０°之间，取向为北北西；构造应力场存在分区差异，尤以南北纵向差异明显；由于研究区内包含了地质构造和新构造活动性质各异的多个构造单元，地震破裂方向一致性较差
Based on focal mechanism solution data, the general characteristics, regional differences and earthquake rupture of the modern tectonic stress field in Bohai Strait and its surroundings are deduced and analyzed. It is considered that the tectonic stress field has some differences between some local and large regions, and the consistency of the azimuth parameters of the stress axes is favored, which is about 330 ° ~ 360 ° with the orientation of north and northwest. There is a difference in regional tectonic stress field, Especially in the longitudinal differences between north and south; as the study area contains many tectonic units with different geological structures and neotectonic activities, the consistency of the earthquake rupture direction is poor