1922 Vallenar earthquake
| UTC time | 1922-11-11 04:32:51 |
|---|---|
| ISC event | 912062 |
| USGS-ANSS | ComCat |
| Local date | 10 November 1922 |
| Local time | 23:53 |
| Magnitude | 8.3—8.6 Mw, 8.7 Mt |
| Depth | 35.0 km (22 mi) |
| Epicenter | 28°59′17″S 70°42′14″W / 28.988°S 70.704°W |
| Areas affected | Chile, Argentina |
| Max. intensity | MMI XI (Extreme) |
| Tsunami | Yes |
| Casualties | Several hundred |
The 1922 Vallenar earthquake occurred with a moment magnitude of 8.3 and a tsunami magnitude of 8.7 in the Atacama Region of Chile, near the border with Argentina on 11 November at 04:32 UTC. It triggered a destructive tsunami that caused significant damage to the coast of Chile and was observed as far away as Australia.