Seismicity Feature and Seismic Risk in the Future of Qinhuangdao Area

We study the seismicity feature, historical earthquake activity andthe effects of the 1976 Tangshan great earthquake to the Qinghuangdao area, analyze the characteristic of the historical moderate and strong earthquakes in this area combining with tectonic characteristics. The result shows that there may exist tectonic background of moderate and strong earthquake risk in the area and the seismic risk probability in the future of the study area is calculated using the maximum likelihood method.