Earthquake mechanism analysis of cross-faults system of Zhangjiakou-bohai fault belt in North China

Abstract

North China is one of the earthquake-prone areas and Zhangjiakou-bohai belt is one of the main seismic tectonic belt in North China. There are many cross-faults in the belt and strong earthquakes occur at the intersection of faults. In order to explore the fault behavior and strong seismic mechanism of cross-fault system, we establish 3D finite element models to simulate the sliding activity of faults under the regional tectonic environment.