| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -57.197, -24.012 |
| UTC time | 1999-10-20 13:38:43.310 |
Earthquake details
Wednesday, October 20, 1999 Earthquake
The earthquake hit South Sandwich Islands region on Wednesday, October 20, 1999 at 13:38 UTC with a magnitude of 5.4. The closest known location in the current dataset is Ushuaia, about 2721.2 km away. The epicenter is located at longitude -24.012 and latitude -57.197.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1999-10-20
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2721.2 km |
| Río Grande | 2733.3 km |
| Río Gallegos | 2936.1 km |
| Punta Arenas | 2954.4 km |
| Caleta Olivia | 3158.2 km |
| Comodoro Rivadavia | 3197.2 km |
| Mar del Plata | 3245.6 km |
| Trelew | 3257.4 km |
| Necochea | 3261.7 km |
| Puerto Madryn | 3278.3 km |
| Balcarce | 3296.9 km |
| Viedma | 3313.1 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.9
South Sandwich Islands region
Unknown · 2026-09-28 04:41 UTC
94.5 km
M 5.1
South Sandwich Islands region
Unknown · 2026-09-28 03:43 UTC
92.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-21 21:37 UTC
81.8 km
M 4.8
South Sandwich Islands region
Unknown · 2026-07-14 15:25 UTC
48.4 km
M 4.3
South Sandwich Islands region
Unknown · 2026-06-24 10:17 UTC
49.0 km
M 4.5
South Sandwich Islands region
Unknown · 2026-06-20 04:50 UTC
86.7 km
M 5.0
South Sandwich Islands region
Unknown · 2026-04-23 05:30 UTC
31.9 km
M 4.5
South Sandwich Islands region
Unknown · 2026-02-26 17:00 UTC
90.7 km
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