Sichuan is a disaster area. Why don't Sichuanese move to other provinces? Why do they have to stay in the disaster area?

Please don't generalize. Your logic is similar to that of Japan, which is a disaster area and should emigrate. There are problems with the premise and conclusion. The Chengdu Plain and the hills in eastern Sichuan have concentrated most of Sichuan's population, with relatively few disasters, especially the Chengdu Plain, which has been a land of abundance since ancient times. There are also few earthquake disasters in the western Sichuan Plateau, and earthquakes mainly occur in the fault zone of Hengduan Mountains.