| Magnitude | 5.3 |
| Alert | Strong |
| Depth | 101.0 km |
| Coordinates | -56.073, -27.458 |
| UTC time | 1973-01-20 23:39:33.400 |
Earthquake details
Saturday, January 20, 1973 Earthquake
The earthquake hit South Sandwich Islands region on Saturday, January 20, 1973 at 23:39 UTC with a magnitude of 5.3. The closest known location in the current dataset is Ushuaia, about 2545.9 km away. The epicenter is located at longitude -27.458 and latitude -56.073.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1973-01-20
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2545.9 km |
| Río Grande | 2550.1 km |
| Río Gallegos | 2742.8 km |
| Punta Arenas | 2772.9 km |
| Caleta Olivia | 2939.4 km |
| Comodoro Rivadavia | 2976.4 km |
| Mar del Plata | 3000.6 km |
| Necochea | 3017.4 km |
| Trelew | 3026.1 km |
| Puerto Madryn | 3045.6 km |
| Balcarce | 3052.1 km |
| Viedma | 3074.4 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
96.5 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
64.3 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
50.6 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
80.8 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
31.6 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
49.7 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
38.4 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
51.2 km
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