| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -56.104, -27.420 |
| UTC time | 1973-03-20 01:06:09.800 |
Earthquake details
Tuesday, March 20, 1973 Earthquake
The earthquake hit South Sandwich Islands region on Tuesday, March 20, 1973 at 01:06 UTC with a magnitude of 5.1. The closest known location in the current dataset is Ushuaia, about 2547.4 km away. The epicenter is located at longitude -27.420 and latitude -56.104.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1973-03-20
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2547.4 km |
| Río Grande | 2551.8 km |
| Río Gallegos | 2744.7 km |
| Punta Arenas | 2774.5 km |
| Caleta Olivia | 2942.0 km |
| Comodoro Rivadavia | 2979.1 km |
| Mar del Plata | 3004.3 km |
| Necochea | 3021.0 km |
| Trelew | 3029.1 km |
| Puerto Madryn | 3048.7 km |
| Balcarce | 3055.8 km |
| Viedma | 3077.8 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
68.5 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
46.9 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
78.1 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
32.3 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
45.6 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
40.8 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
47.0 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
25.5 km
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