| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.627, -27.721 |
| UTC time | 1978-03-07 16:34:45.100 |
Earthquake details
Tuesday, March 7, 1978 Earthquake
The earthquake hit South Sandwich Islands region on Tuesday, March 7, 1978 at 16:34 UTC with a magnitude of 5.5. The closest known location in the current dataset is Ushuaia, about 2542.5 km away. The epicenter is located at longitude -27.721 and latitude -55.627.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1978-03-07
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2542.5 km |
| Río Grande | 2544.2 km |
| Río Gallegos | 2733.2 km |
| Punta Arenas | 2767.2 km |
| Caleta Olivia | 2919.6 km |
| Comodoro Rivadavia | 2955.7 km |
| Mar del Plata | 2962.1 km |
| Necochea | 2980.3 km |
| Trelew | 3000.0 km |
| Balcarce | 3014.0 km |
| Puerto Madryn | 3018.6 km |
| Viedma | 3043.4 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 06:38 UTC
62.4 km
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
46.3 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
24.5 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
96.3 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
65.5 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
99.5 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
55.5 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
35.7 km
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