| Magnitude | 5.3 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -57.878, -25.340 |
| UTC time | 1977-04-13 01:38:10.600 |
Earthquake details
Wednesday, April 13, 1977 Earthquake
The earthquake hit South Sandwich Islands region on Wednesday, April 13, 1977 at 01:38 UTC with a magnitude of 5.3. The closest known location in the current dataset is Ushuaia, about 2627.5 km away. The epicenter is located at longitude -25.340 and latitude -57.878.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1977-04-13
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2627.5 km |
| Río Grande | 2642.3 km |
| Río Gallegos | 2849.0 km |
| Punta Arenas | 2862.7 km |
| Caleta Olivia | 3085.1 km |
| Comodoro Rivadavia | 3125.5 km |
| Trelew | 3195.2 km |
| Mar del Plata | 3211.2 km |
| Puerto Madryn | 3217.6 km |
| Necochea | 3223.3 km |
| Viedma | 3260.7 km |
| Balcarce | 3261.2 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.9
South Sandwich Islands region
Unknown · 2026-09-28 04:41 UTC
25.3 km
M 5.1
South Sandwich Islands region
Unknown · 2026-09-28 03:43 UTC
23.4 km
M 5.1
South Sandwich Islands region
Unknown · 2026-09-08 06:50 UTC
60.5 km
M 4.9
South Sandwich Islands region
Unknown · 2026-08-29 07:10 UTC
53.7 km
M 4.9
South Sandwich Islands region
Unknown · 2026-08-23 17:23 UTC
96.9 km
M 4.8
South Sandwich Islands region
Unknown · 2026-07-14 15:25 UTC
90.5 km
M 4.9
South Sandwich Islands region
Unknown · 2026-07-13 17:45 UTC
77.4 km
M 4.9
South Sandwich Islands region
Unknown · 2026-07-09 23:31 UTC
81.3 km
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