| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 37.9 km |
| Coordinates | -55.953, -24.830 |
| UTC time | 1983-09-17 22:25:41.780 |
Earthquake details
Saturday, September 17, 1983 Earthquake
The earthquake hit South Sandwich Islands region on Saturday, September 17, 1983 at 22:25 UTC with a magnitude of 5.5. The closest known location in the current dataset is Ushuaia, about 2707.4 km away. The epicenter is located at longitude -24.830 and latitude -55.953.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1983-09-17
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2707.4 km |
| Río Grande | 2712.8 km |
| Río Gallegos | 2906.6 km |
| Punta Arenas | 2935.4 km |
| Caleta Olivia | 3102.0 km |
| Comodoro Rivadavia | 3138.6 km |
| Mar del Plata | 3139.5 km |
| Necochea | 3159.7 km |
| Trelew | 3184.5 km |
| Balcarce | 3192.1 km |
| Puerto Madryn | 3203.1 km |
| Viedma | 3227.1 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
South Sandwich Islands region
Unknown · 2026-09-21 21:37 UTC
77.7 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
85.7 km
M 4.7
South Sandwich Islands region
Unknown · 2026-06-28 22:14 UTC
98.2 km
M 4.6
South Sandwich Islands region
Unknown · 2026-06-19 03:50 UTC
64.4 km
M 4.4
South Sandwich Islands region
Unknown · 2026-06-17 20:06 UTC
49.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-06-17 19:48 UTC
75.6 km
M 4.3
South Sandwich Islands region
Unknown · 2026-06-16 19:27 UTC
76.1 km
M 4.9
South Sandwich Islands region
Unknown · 2026-06-16 17:13 UTC
93.5 km
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