| Magnitude | 6.7 |
| Alert | Severe |
| Depth | 35.0 km |
| Coordinates | -56.529, -26.064 |
| UTC time | 1963-12-31 17:37:34.470 |
Earthquake details
Tuesday, December 31, 1963 Earthquake
The earthquake hit South Sandwich Islands region on Tuesday, December 31, 1963 at 17:37 UTC with a magnitude of 6.7. The closest known location in the current dataset is Ushuaia, about 2617.3 km away. The epicenter is located at longitude -26.064 and latitude -56.529.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Severe |
Earthquake map 1963-12-31
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2617.3 km |
| Río Grande | 2624.8 km |
| Río Gallegos | 2821.7 km |
| Punta Arenas | 2846.9 km |
| Caleta Olivia | 3028.9 km |
| Comodoro Rivadavia | 3066.7 km |
| Mar del Plata | 3100.5 km |
| Necochea | 3117.1 km |
| Trelew | 3120.7 km |
| Puerto Madryn | 3140.8 km |
| Balcarce | 3151.9 km |
| Viedma | 3172.0 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
49.2 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
42.2 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
53.7 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
58.2 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
92.8 km
M 4.9
South Sandwich Islands region
Unknown · 2026-06-30 15:15 UTC
80.3 km
M 4.6
South Sandwich Islands region
Unknown · 2026-06-19 03:50 UTC
35.2 km
M 4.4
South Sandwich Islands region
Unknown · 2026-06-17 20:06 UTC
78.6 km
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