阐述张家口市尚义MS 4.0地震构造背景、地震活动特征,总结地震应急调查成果,介绍极震区震感现象和分布范围.通过对地震现场调查点和电话调查点的烈度评定,确定极震区的影响烈度为Ⅴ度,圈定地震等烈度分布区域,同时修正观测仪器震中位置.结合本次地震的宏观烈度分布、震源机制和震区卫星影像的线性构造解释等资料,讨论本次地震的孕震构造和发震断层.%In this paper, the seismic active tectonic background and characteristics of Shangyi MS 4.0 earthquake in Zhangjiakou City is described. And the earthquake emergency investigation results are summarized. The distribution and effects of the earthquake in the area are introduced in detail. Through the intensity evaluation of the spot investigation and the telephone survey at the earthquake site, we have determined the epicenter area of seismic intensityⅤ, as well as the earthquake intensity distribution and revised instrument epicenter. Combined with earthquake macroscopic intensity distribution, focal mechanism and earthquake satellite images of the linear structure interpretation data, the seismogenic fault and seismogenic structure of the earthquake are discussed.
展开▼
