On April 20 10 4/KLOC-0, 6 earthquakes occurred in Yushu City, Yushu Tibetan Autonomous Prefecture, Qinghai Province. The highest magnitude was 7. 1, which occurred at 7: 49, and the epicenter of the earthquake was near the county seat.

The Ya 'an earthquake of magnitude 4.20 occurred at 8: 02 on April 20th, 20 13, Beijing time in Lushan County, Ya 'an City, Sichuan Province (latitude 30.3, longitude 103.0). The focal depth is 13km. Chongqing and Shaanxi Baoji, Hanzhong, Ankang and other places have strong earthquakes.