| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -58.775, -25.485 |
| UTC time | 1989-12-20 23:45:58.220 |
Earthquake details
Wednesday, December 20, 1989 Earthquake
The earthquake hit South Sandwich Islands region on Wednesday, December 20, 1989 at 23:45 UTC with a magnitude of 5.5. The closest known location in the current dataset is Ushuaia, about 2601.7 km away. The epicenter is located at longitude -25.485 and latitude -58.775.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1989-12-20
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2601.7 km |
| Río Grande | 2621.0 km |
| Río Gallegos | 2833.5 km |
| Punta Arenas | 2839.9 km |
| Caleta Olivia | 3088.4 km |
| Comodoro Rivadavia | 3130.5 km |
| Trelew | 3211.0 km |
| Puerto Madryn | 3235.1 km |
| Mar del Plata | 3254.2 km |
| Necochea | 3262.8 km |
| Viedma | 3286.7 km |
| Balcarce | 3303.0 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
South Sandwich Islands region
Unknown · 2026-09-27 21:13 UTC
39.3 km
M 5.1
South Sandwich Islands region
Unknown · 2026-09-12 00:55 UTC
51.2 km
M 5.1
South Sandwich Islands region
Unknown · 2026-09-08 06:50 UTC
85.5 km
M 4.9
South Sandwich Islands region
Unknown · 2026-08-23 17:23 UTC
13.1 km
M 5.4
South Sandwich Islands region
Unknown · 2026-08-21 13:06 UTC
62.3 km
M 4.9
South Sandwich Islands region
Unknown · 2026-07-24 00:37 UTC
11.0 km
M 4.9
South Sandwich Islands region
Unknown · 2026-07-21 08:53 UTC
51.7 km
M 4.8
South Sandwich Islands region
Unknown · 2026-07-18 16:57 UTC
85.5 km
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