A DYNAMIC MODEL OF 1996 XINGTAI MS 7.2 EARTHQUAKE

Based on fhe latest deep seismic reflection section, stress field and focal mechanism parameters, the 6nite elememt model of Xingtai M, 7.2 earthquake is presented. We think that Shulu Fault Basin is sub jected to horizontal external compressive stress field in east-west direction. The distributions of the maximum shear stress on the planer and sectional models are calculated. The results show that concen trati0n points of the maximum shear stress are on the whole consistent with the strong seismic focuses. A dynamic model of 1996 Xingtai M. 7.2 earthquake is presented too. Shallow faults, deep fsults, low-velocity layer in the earth's crust and horizontal compressive stress in east-west direction may be es sential for earthquakes occurring.