| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.322, -28.582 |
| UTC time | 1973-03-03 05:20:44.400 |
Earthquake details
Saturday, March 3, 1973 Earthquake
The earthquake hit South Sandwich Islands region on Saturday, March 3, 1973 at 05:20 UTC with a magnitude of 5.5. The closest known location in the current dataset is Río Grande, about 2498.3 km away. The epicenter is located at longitude -28.582 and latitude -55.322.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1973-03-03
Closest countries
The 12 closest cities near the epicenter.
| Río Grande | 2498.3 km |
| Ushuaia | 2498.9 km |
| Río Gallegos | 2684.3 km |
| Punta Arenas | 2721.6 km |
| Caleta Olivia | 2863.2 km |
| Mar del Plata | 2898.1 km |
| Comodoro Rivadavia | 2898.8 km |
| Necochea | 2916.5 km |
| Trelew | 2939.9 km |
| Balcarce | 2950.1 km |
| Puerto Madryn | 2958.2 km |
| Viedma | 2981.2 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
10.6 km
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
23.6 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
44.9 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
90.5 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
98.3 km
M 6.4
South Sandwich Islands region
Unknown · 2026-07-11 10:26 UTC
31.5 km
M 4.6
South Sandwich Islands region
Unknown · 2026-06-30 01:33 UTC
98.8 km
M 5.1
South Sandwich Islands region
Unknown · 2026-06-30 00:15 UTC
88.5 km
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