MODEL OF REGIONAL SEISM-DYNAMICS IN HEISHANXIA GORGE REGION ON THE YELLOW RIVER

By taking heishanxia gorge region on the yellow river as the sample, space-time characteristic of seismicities at that area has been analyized, and according to the layering structure of lithosphere and feature of its mechanical strength, the layering characteritics of seismogeny and its mechanism has been analysed. By analy the dynamics mechanism of seismogeny on north-south deep-seated belt of seismogeny, The stereographic cross model of seismogeny at that area has been established. On that basis, the segmentation feature of seismicity on Zhongwei-Tongxin active fault zone, and dynamic effect of deep quaking have been analysized and sum.