| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.945, -27.068 |
| UTC time | 1990-09-23 17:45:43.530 |
Earthquake details
Sunday, September 23, 1990 Earthquake
The earthquake hit South Sandwich Islands region on Sunday, September 23, 1990 at 17:45 UTC with a magnitude of 5.4. The closest known location in the current dataset is Ushuaia, about 2573.0 km away. The epicenter is located at longitude -27.068 and latitude -55.945.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1990-09-23
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2573.0 km |
| Río Grande | 2576.8 km |
| Río Gallegos | 2768.8 km |
| Punta Arenas | 2799.6 km |
| Caleta Olivia | 2962.6 km |
| Comodoro Rivadavia | 2999.4 km |
| Mar del Plata | 3014.9 km |
| Necochea | 3032.7 km |
| Trelew | 3047.0 km |
| Puerto Madryn | 3066.2 km |
| Balcarce | 3066.7 km |
| Viedma | 3093.1 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
74.3 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
44.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
60.8 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
59.7 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
51.3 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
64.6 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
57.1 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
19.9 km
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