| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.575, -27.994 |
| UTC time | 1983-07-04 11:32:45.890 |
Earthquake details
Monday, July 4, 1983 Earthquake
The earthquake hit South Sandwich Islands region on Monday, July 4, 1983 at 11:32 UTC with a magnitude of 5.5. The closest known location in the current dataset is Ushuaia, about 2527.4 km away. The epicenter is located at longitude -27.994 and latitude -55.575.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1983-07-04
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2527.4 km |
| Río Grande | 2528.6 km |
| Río Gallegos | 2717.0 km |
| Punta Arenas | 2751.7 km |
| Caleta Olivia | 2902.1 km |
| Comodoro Rivadavia | 2938.1 km |
| Mar del Plata | 2944.3 km |
| Necochea | 2962.4 km |
| Trelew | 2982.0 km |
| Balcarce | 2996.2 km |
| Puerto Madryn | 3000.6 km |
| Viedma | 3025.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 06:38 UTC
46.2 km
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
31.9 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
9.3 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
70.4 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
56.9 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
51.8 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
74.9 km
M 6.4
South Sandwich Islands region
Unknown · 2026-07-11 10:26 UTC
57.8 km
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