At 1:48, rescue workers arrived at the scene. After investigation and inquiry, it was found that the scene of the accident was a self built house in the countryside, and the side of the house was close to the mountain. Due to the recent heavy rainfall, the mountain collapsed and impacted the houses.
After preliminary investigation, it is estimated that the collapse volume at the disaster site is about 1400 cubic meters (20m * 10m * 7m). There are many factors in the disaster site, such as large amount of collapse, narrow rescue space, poor lighting conditions, secondary collapse and so on.