China Earthquake Networks officially determined that an earthquake of magnitude 4.2 occurred at 21:46 on December 22, 2021 in Tianning District, Changzhou City, Jiangsu Province (31.75 degrees north latitude, 120.00 degrees east longitude), with a focal depth of 10 kilometers. The earthquake caused a strong sense of earthquake, especially in Wuxi, Suzhou, Yangzhou, etc. Many netizens in Shanghai said that the bed shook and the windows made noises. The earthquake was also felt in Nanjing and other places.