| Magnitude | 5.3 |
| Alert | Strong |
| Depth | 105.5 km |
| Coordinates | -56.426, -26.561 |
| UTC time | 1981-10-21 07:35:20.400 |
Earthquake details
Wednesday, October 21, 1981 Earthquake
The earthquake hit South Sandwich Islands region on Wednesday, October 21, 1981 at 07:35 UTC with a magnitude of 5.3. The closest known location in the current dataset is Ushuaia, about 2590.4 km away. The epicenter is located at longitude -26.561 and latitude -56.426.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1981-10-21
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2590.4 km |
| Río Grande | 2597.0 km |
| Río Gallegos | 2792.9 km |
| Punta Arenas | 2819.3 km |
| Caleta Olivia | 2997.6 km |
| Comodoro Rivadavia | 3035.3 km |
| Mar del Plata | 3068.2 km |
| Necochea | 3084.6 km |
| Trelew | 3088.5 km |
| Puerto Madryn | 3108.5 km |
| Balcarce | 3119.6 km |
| Viedma | 3139.4 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
18.1 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
39.0 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
86.6 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
21.3 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
27.4 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
78.7 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
69.0 km
M 4.5
South Sandwich Islands region
Unknown · 2026-07-03 01:53 UTC
75.5 km
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