1976 Tangshan earthquake — earthquake that occurred in 1976 Tangshan, Hebei, China
The 1976 Tangshan earthquake killed at least 242,469 people officially, making it the deadliest earthquake in modern recorded history.
Key Facts
- Moment Magnitude
- 7.6 Mw
- Official Death Toll
- 242,469 deaths
- Historian Estimate
- At least 300,000 deaths
- Mercalli Intensity
- XI (Extreme)
- Buildings Collapsed/Unusable
- 85% of Tangshan buildings
- Local Time of Strike
- 03:42:55, 28 July 1976
By the Numbers
Location
Cause → Event → Consequence
A sudden seismic rupture occurred beneath the industrialized city of Tangshan in Hebei province, China, releasing energy equivalent to a Mw 7.6 earthquake. The region had little advanced warning, and the event struck in the early morning hours when most residents were asleep indoors.
At 03:42:55 local time on 28 July 1976, the earthquake struck Tangshan with a maximum Mercalli intensity of XI (Extreme). Within minutes, 85 percent of the city's buildings collapsed or were rendered unusable, all municipal services failed, and most highway and railway bridges collapsed or suffered serious damage.
The official death toll reached 242,469, with historians estimating at least 300,000 fatalities, ranking it the deadliest earthquake in modern recorded history. The disaster devastated one of China's major industrial cities and prompted significant long-term efforts in earthquake preparedness and urban reconstruction across China.
Human Cost
Each dot represents approximately 10,000 deaths. Total estimated: 242,469 (earthquake)
Range: 242,469 – 300,000