| Magnitude | 5.1 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -58.053, -10.502 |
| UTC time | 1977-04-04 04:58:36.800 |
Earthquake details
Monday, April 4, 1977 Earthquake
The earthquake hit east of the South Sandwich Islands on Monday, April 4, 1977 at 04:58 UTC with a magnitude of 5.1. The closest known location in the current dataset is Hermanus, about 3432.6 km away. The epicenter is located at longitude -10.502 and latitude -58.053.
| Location | east of the South Sandwich Islands |
| Country | east of the South Sandwich Islands |
| Severity | Strong |
Earthquake map 1977-04-04
Closest countries
The 12 closest cities near the epicenter.
| Hermanus | 3432.6 km |
| Cape Town | 3442.2 km |
| Somerset West | 3445.3 km |
| Grabouw | 3447.9 km |
| Stellenbosch | 3461.8 km |
| Kraaifontein | 3463.2 km |
| Ushuaia | 3466.6 km |
| Atlantis | 3479.7 km |
| Paarl | 3486.2 km |
| Río Grande | 3490.7 km |
| Wellington | 3496.9 km |
| Malmesbury | 3501.1 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.6
east of the South Sandwich Islands
Unknown · 2025-07-22 07:59 UTC
10.7 km
M 4.9
east of the South Sandwich Islands
Unknown · 2025-06-20 18:40 UTC
76.6 km
M 4.8
east of the South Sandwich Islands
Unknown · 2025-05-31 22:30 UTC
49.2 km
M 5.4
east of the South Sandwich Islands
Unknown · 2025-02-27 14:54 UTC
9.1 km
M 5.5
east of the South Sandwich Islands
Unknown · 2021-01-11 19:44 UTC
38.8 km
M 6.3
east of the South Sandwich Islands
Unknown · 2019-11-05 20:52 UTC
71.0 km
M 5.8
east of the South Sandwich Islands
Unknown · 2018-09-27 10:25 UTC
55.5 km
M 4.6
east of the South Sandwich Islands
Unknown · 2015-12-18 23:41 UTC
66.7 km
Stay informed
Earthquake alerts
Create targeted notifications for important seismic activity near the places you follow.