| Magnitude | 5.6 |
| Alert | Strong |
| Depth | 130.4 km |
| Coordinates | -56.428, -27.494 |
| UTC time | 2011-08-21 12:38:53.780 |
Earthquake details
Sunday, August 21, 2011 Earthquake
The earthquake hit South Sandwich Islands region on Sunday, August 21, 2011 at 12:38 UTC with a magnitude of 5.6. The closest known location in the current dataset is Ushuaia, about 2534.4 km away. The epicenter is located at longitude -27.494 and latitude -56.428.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 2011-08-21
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2534.4 km |
| Río Grande | 2540.5 km |
| Río Gallegos | 2735.8 km |
| Punta Arenas | 2762.9 km |
| Caleta Olivia | 2940.4 km |
| Comodoro Rivadavia | 2978.2 km |
| Mar del Plata | 3018.2 km |
| Trelew | 3032.4 km |
| Necochea | 3033.5 km |
| Puerto Madryn | 3052.6 km |
| Balcarce | 3069.2 km |
| Viedma | 3085.0 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
97.1 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
47.8 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
87.6 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
35.5 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
36.5 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
52.5 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
30.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
61.8 km
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