| Magnitude | 5.5 |
| Alert | Strong |
| Depth | 120.0 km |
| Coordinates | -56.470, -27.058 |
| UTC time | 1978-06-30 00:54:38.700 |
Earthquake details
Friday, June 30, 1978 Earthquake
The earthquake hit South Sandwich Islands region on Friday, June 30, 1978 at 00:54 UTC with a magnitude of 5.5. The closest known location in the current dataset is Ushuaia, about 2559.5 km away. The epicenter is located at longitude -27.058 and latitude -56.470.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1978-06-30
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2559.5 km |
| Río Grande | 2566.0 km |
| Río Gallegos | 2761.9 km |
| Punta Arenas | 2788.4 km |
| Caleta Olivia | 2967.5 km |
| Comodoro Rivadavia | 3005.3 km |
| Mar del Plata | 3043.8 km |
| Necochea | 3059.5 km |
| Trelew | 3059.6 km |
| Puerto Madryn | 3079.8 km |
| Balcarce | 3095.0 km |
| Viedma | 3111.9 km |
Nearby earthquakes
The latest 8 earthquakes within 100 km of this epicenter.
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
26.5 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
65.4 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
60.1 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
12.5 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
76.1 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
3.6 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
68.6 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
71.6 km
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