Both teachers and seniors have been to the project of ground disaster caused by historical strong earthquakes in southwest China. In Songpinggou, the picture below is a screenshot of the sky map of the geosphere station. The type of ground disaster is unstable slope behind the village, but it belongs to medium-sized high-level landslide. From 20 o'clock last night to the present, the accumulated rainfall at Diexi Township Rainfall Station is 6.7 mm, and the rain is not big, but it just slipped. It is impossible for people to thoroughly study geological bodies, let alone conquer nature. As for saving people, the diameter of the blocks in the site accumulation body is basically above 1 m, and nothing can be broken. Just as a South Korean shipwreck can't save a few people, human strength is too small. Don't blame the government. Even people who don't specialize in geology should see that the western Sichuan Canyon area is really not a place where humans can stay casually, otherwise there won't be so many unpolluted areas. This place is also the hardest hit area of Diexi earthquake which was destroyed by 1933, forming a series of dammed lakes, which have been developed into tourist areas. No.24 collapse source area was near the sliding source area of the landslide dam at that time, and it was the upper wall of Songpinggou fault, the seismogenic fault of Diexi earthquake in 1933. Now the analysis shows that the loose rock mass in the sliding source area is an aftershock effect, which lasts for a long time and is controlled by many factors, not just rainfall. Nowadays, many houses are built on the sliding body of that year, and some are built on the bank of the dammed lake after the breach, all of which are in dangerous areas, so it is difficult to prevent disasters. Sudden geological disasters occur from time to time in this area, as was the case in Shidaguan two years ago. Not far from here, the mountain suddenly collapsed and it didn't rain. Therefore, the disaster effect after the earthquake is a subject worthy of in-depth study, but there is not much investment in this area. Anyway, there are not many now, and the leaders all regard us as scientific liars. In the last sentence, from the perspective of people's life and property safety, avoiding this place is the best choice.