1974 Zhaotong earthquake
| UTC time | 1974-05-10 19:25:16 |
|---|---|
| ISC event | 748061 |
| USGS-ANSS | ComCat |
| Local date | May 11, 1974 |
| Local time | 03:25:16 |
| Magnitude | 7.1 Ms |
| Depth | 14 km (8.7 mi) |
| Epicenter | 28°14′N 104°01′E / 28.24°N 104.01°E |
| Areas affected | China, Yunnan, Sichuan |
| Max. intensity | MMI IX (Violent) |
| Casualties | 1,641–20,000 |
The 1974 Zhaotong earthquake occurred at 3:25 in the morning local time on 11 May 1974, with a Coordinated Universal Time (UTC) time of 19:25:16 on 10 May. It had a magnitude that was measured at 7.0 on the moment magnitude scale and 7.1 on the surface-wave magnitude scale. It had a maximum perceived intensity of IX (Violent) on the Mercalli intensity scale. The epicenter was located in Zhaotong prefecture in Yunnan province and it caused between 1,641 and 20,000 deaths.