7.28 Tangshan earthquake refers to an earthquake of magnitude 7.8 (moment 7.5) on July 28th, 0976 at 3: 42: 53.8 seconds in Fengnan area, Tangshan City, Hebei Province, China (east longitude 1 18.2, north latitude 39.6), with the epicenter intensity of 18. The earthquake killed 242,769 people, and 16485 1 person was seriously injured, ranking second in the history of earthquakes in the world in the 20th century, second only to offshore earthquakes.