| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.300, -28.131 |
| UTC time | 1989-12-21 00:33:59.310 |
Earthquake details
Thursday, December 21, 1989 Earthquake
The earthquake hit South Sandwich Islands region on Thursday, December 21, 1989 at 00:33 UTC with a magnitude of 5.2. The closest known location in the current dataset is Río Grande, about 2526.7 km away. The epicenter is located at longitude -28.131 and latitude -55.300.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1989-12-21
Closest countries
The 12 closest cities near the epicenter.
| Río Grande | 2526.7 km |
| Ushuaia | 2527.1 km |
| Río Gallegos | 2712.9 km |
| Punta Arenas | 2750.0 km |
| Caleta Olivia | 2891.6 km |
| Mar del Plata | 2921.8 km |
| Comodoro Rivadavia | 2927.0 km |
| Necochea | 2940.9 km |
| Trelew | 2967.5 km |
| Balcarce | 2974.0 km |
| Puerto Madryn | 2985.5 km |
| Viedma | 3007.6 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 06:38 UTC
21.6 km
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
5.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
36.2 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
87.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
80.3 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
98.0 km
M 6.4
South Sandwich Islands region
Unknown · 2026-07-11 10:26 UTC
55.7 km
M 4.5
South Sandwich Islands region
Unknown · 2026-07-03 01:53 UTC
88.2 km
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