| Magnitude | 6.6 |
| Alert | Severe |
| Depth | 10.0 km |
| Coordinates | -56.373, -25.089 |
| UTC time | 1930-04-21 11:50:49.560 |
Earthquake details
Monday, April 21, 1930 Earthquake
The earthquake hit South Sandwich Islands region on Monday, April 21, 1930 at 11:50 UTC with a magnitude of 6.6. The closest known location in the current dataset is Ushuaia, about 2679.7 km away. The epicenter is located at longitude -25.089 and latitude -56.373.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Severe |
Earthquake map 1930-04-21
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2679.7 km |
| Río Grande | 2687.0 km |
| Río Gallegos | 2883.5 km |
| Punta Arenas | 2909.2 km |
| Caleta Olivia | 3087.8 km |
| Comodoro Rivadavia | 3125.2 km |
| Mar del Plata | 3145.7 km |
| Necochea | 3164.0 km |
| Trelew | 3176.4 km |
| Puerto Madryn | 3196.0 km |
| Balcarce | 3197.7 km |
| Viedma | 3224.3 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 5.0
South Sandwich Islands region
Unknown · 2026-09-21 21:37 UTC
69.6 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
70.7 km
M 4.8
South Sandwich Islands region
Unknown · 2026-07-14 15:25 UTC
84.6 km
M 4.6
South Sandwich Islands region
Unknown · 2026-06-19 03:50 UTC
34.2 km
M 4.4
South Sandwich Islands region
Unknown · 2026-06-17 20:06 UTC
64.6 km
M 5.0
South Sandwich Islands region
Unknown · 2026-06-17 19:48 UTC
91.2 km
M 4.3
South Sandwich Islands region
Unknown · 2026-06-16 19:27 UTC
88.6 km
M 4.9
South Sandwich Islands region
Unknown · 2026-06-16 17:13 UTC
94.9 km
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