| Magnitude | 5.4 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -59.503, -21.297 |
| UTC time | 1977-08-29 12:32:39.600 |
Earthquake details
Monday, August 29, 1977 Earthquake
The earthquake hit east of the South Sandwich Islands on Monday, August 29, 1977 at 12:32 UTC with a magnitude of 5.4. The closest known location in the current dataset is Ushuaia, about 2823.9 km away. The epicenter is located at longitude -21.297 and latitude -59.503.
| Location | east of the South Sandwich Islands |
| Country | east of the South Sandwich Islands |
| Severity | Strong |
Earthquake map 1977-08-29
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2823.9 km |
| Río Grande | 2848.4 km |
| Punta Arenas | 3065.2 km |
| Río Gallegos | 3066.5 km |
| Caleta Olivia | 3334.9 km |
| Comodoro Rivadavia | 3377.8 km |
| Trelew | 3462.3 km |
| Puerto Madryn | 3486.8 km |
| Mar del Plata | 3502.7 km |
| Necochea | 3512.7 km |
| Viedma | 3539.2 km |
| Balcarce | 3552.0 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
South Sandwich Islands region
Unknown · 2025-07-27 01:11 UTC
75.1 km
M 4.9
east of the South Sandwich Islands
Unknown · 2017-04-17 14:33 UTC
59.5 km
M 5.1
east of the South Sandwich Islands
Unknown · 2011-09-09 02:51 UTC
26.0 km
M 4.8
east of the South Sandwich Islands
Unknown · 2009-05-21 22:48 UTC
61.9 km
M 4.6
east of the South Sandwich Islands
Unknown · 2005-05-03 22:41 UTC
97.8 km
M 4.8
east of the South Sandwich Islands
Unknown · 1986-10-22 00:12 UTC
13.7 km
M 4.8
east of the South Sandwich Islands
Unknown · 1985-02-13 00:28 UTC
84.4 km
M 4.7
east of the South Sandwich Islands
Unknown · 1978-04-13 15:24 UTC
84.9 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.