1638 Calabrian earthquakes
| Local date | March 27, 1638 |
|---|---|
| Local time | 20:00 to 21:00 |
| Magnitude | Mw 6.8–7.1 (March 27) |
| Depth | 15 km (9 mi) |
| Epicenter | 38°38′N 15°47′E / 38.64°N 15.78°E |
| Areas affected | Calabria, Kingdom of Naples (present-day Italy) |
| Max. intensity | MMI XI (Extreme) |
| Tsunami | Uncertain |
| Casualties | 9,581–30,000 |
A series of mainshocks struck Calabria on March 27–28 and June 9, 1638. The first three earthquakes had moment magnitudes estimated to be Mw 6.6–7.1. On June 9, another mainshock estimated at Mw 6.7 struck the same region, causing further damage and casualties. The four earthquakes resulted in as many as 30,000 fatalities.