| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -60.388, -25.312 |
| UTC time | 1983-10-23 02:35:40.970 |
Earthquake details
Sunday, October 23, 1983 Earthquake
The earthquake hit South Sandwich Islands region on Sunday, October 23, 1983 at 02:35 UTC with a magnitude of 5.1. The closest known location in the current dataset is Ushuaia, about 2588.7 km away. The epicenter is located at longitude -25.312 and latitude -60.388.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1983-10-23
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2588.7 km |
| Río Grande | 2616.5 km |
| Punta Arenas | 2831.7 km |
| Río Gallegos | 2838.8 km |
| Caleta Olivia | 3126.3 km |
| Comodoro Rivadavia | 3171.2 km |
| Trelew | 3270.1 km |
| Puerto Madryn | 3297.1 km |
| Mar del Plata | 3358.0 km |
| Necochea | 3360.9 km |
| Viedma | 3362.9 km |
| Balcarce | 3404.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
South Sandwich Islands region
Unknown · 2026-07-17 18:24 UTC
96.4 km
M 4.2
South Sandwich Islands region
Unknown · 2026-07-13 11:05 UTC
29.6 km
M 4.3
South Sandwich Islands region
Unknown · 2026-05-24 10:04 UTC
76.9 km
M 5.0
South Sandwich Islands region
Unknown · 2026-03-22 11:39 UTC
94.8 km
M 4.6
South Sandwich Islands region
Unknown · 2026-01-27 09:54 UTC
67.3 km
M 4.1
South Sandwich Islands region
Unknown · 2025-12-20 18:27 UTC
16.0 km
M 4.6
South Sandwich Islands region
Unknown · 2025-10-31 04:49 UTC
87.3 km
M 4.5
South Sandwich Islands region
Unknown · 2025-08-26 17:57 UTC
50.8 km
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