A magnitude 5.3 earthquake occurred in Vietnam. (Photo source: China Earthquake Networks official Weibo)

  China News Service, July 27. According to the official determination of China Earthquake Networks, a magnitude 5.3 earthquake occurred in Vietnam (20.90 degrees north latitude, 104.70 degrees east longitude) at 13:14 on July 27, Beijing time, with a focal depth of 10 kilometers.