| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 64.0 km |
| Coordinates | -56.317, -25.743 |
| UTC time | 1975-10-20 01:48:37.500 |
Earthquake details
Monday, October 20, 1975 Earthquake
The earthquake hit South Sandwich Islands region on Monday, October 20, 1975 at 01:48 UTC with a magnitude of 5.4. The closest known location in the current dataset is Ushuaia, about 2642.2 km away. The epicenter is located at longitude -25.743 and latitude -56.317.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1975-10-20
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2642.2 km |
| Río Grande | 2648.8 km |
| Río Gallegos | 2844.5 km |
| Punta Arenas | 2871.1 km |
| Caleta Olivia | 3047.1 km |
| Comodoro Rivadavia | 3084.6 km |
| Mar del Plata | 3107.0 km |
| Necochea | 3124.7 km |
| Trelew | 3135.6 km |
| Puerto Madryn | 3155.2 km |
| Balcarce | 3158.8 km |
| Viedma | 3183.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
62.2 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
31.7 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
72.1 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
79.1 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
89.2 km
M 4.9
South Sandwich Islands region
Unknown · 2026-06-30 15:15 UTC
86.7 km
M 4.6
South Sandwich Islands region
Unknown · 2026-06-19 03:50 UTC
6.6 km
M 4.4
South Sandwich Islands region
Unknown · 2026-06-17 20:06 UTC
50.5 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.