1870 Charlevoix earthquake
| USGS-ANSS | ComCat |
|---|---|
| Local date | October 20, 1870 |
| Local time | 16:30 |
| Magnitude | 6.6 Mw MI 5.5–6.0 |
| Epicenter | 47°24′N 70°30′W / 47.4°N 70.5°W |
| Areas affected | Canada, United States |
| Max. intensity | MMI X (Extreme) |
| Casualties | 6 dead |
The 1870 Charlevoix earthquake occurred on 20 October in the Canadian province of Quebec. It had a moment magnitude of 6.6 Mw and a Modified Mercalli intensity rating of X (Extreme). The town of Baie-Saint-Paul was seriously damaged by the event, with the loss of six lives. Effects from the earthquake were felt as far as Virginia and along the New England coast of the United States.