China News Service, May 31. According to the official Weibo news of the National Seismological Network, the China Seismological Network officially determined that the incident occurred in the waters of Penglai District, Yantai City, Shandong Province (38.01 degrees north latitude, 120.41 degrees east longitude) at 07:23 on May 31. A magnitude 3.7 earthquake has a focal depth of 9 kilometers.

Image source: Official Weibo of the National Seismological Network