1970 Tonghai Earthquake

Date: January 4, 1970 • Location: Yuxi, China

A magnitude-7.1 earthquake occurred in Tonghai County, China, killing at least 15,000 people.

An earthquake occurred in Tonghai, Yunnan province, China at 01:00:41 local time on 5 January 1970 with a moment magnitude of 7.1 and a maximum Mercalli intensity of X (Extreme). The strike-slip rupture originated on the Red River Fault, which had not experienced an earthquake above magnitude 7 since 1700. At least 10,000 people were killed, making it one of the deadliest in its decade. The tremor caused between US$5 and $25 million in damage, felt over an area of 8,781 km2 (3,390 sq mi). In Hanoi, North Vietnam, almost 483 km (300 mi) from the epicenter, victims left their homes as the rupture rumbled through the city.