Abstract: According to many deep researches and to the latest information of this area about its geology, its earth structure; by using the physique of the deep earth, the history of the earthquake and the study of the tradition architectures, we obtain the result that this area is very instable. It happened here and areas nearby some big earthquakes around 7.5 degree. There is a threat that an earthquake more than 7 degrees would take place recently. What's more, the Intensity of earthquake here is more than 9degree which raises even more the danger.