| Magnitude | 5.2 |
| Alert | Strong |
| Depth | 33.0 km |
| Coordinates | -55.979, -27.873 |
| UTC time | 1987-10-21 18:59:44.020 |
Earthquake details
Wednesday, October 21, 1987 Earthquake
The earthquake hit South Sandwich Islands region on Wednesday, October 21, 1987 at 18:59 UTC with a magnitude of 5.2. The closest known location in the current dataset is Ushuaia, about 2523.4 km away. The epicenter is located at longitude -27.873 and latitude -55.979.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Strong |
Earthquake map 1987-10-21
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2523.4 km |
| Río Grande | 2526.9 km |
| Río Gallegos | 2718.6 km |
| Punta Arenas | 2749.7 km |
| Caleta Olivia | 2912.8 km |
| Comodoro Rivadavia | 2949.7 km |
| Mar del Plata | 2973.0 km |
| Necochea | 2989.6 km |
| Trelew | 2998.7 km |
| Puerto Madryn | 3018.1 km |
| Balcarce | 3024.4 km |
| Viedma | 3046.6 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
88.6 km
M 4.8
South Sandwich Islands region
Unknown · 2026-09-29 04:16 UTC
76.7 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-19 09:59 UTC
42.0 km
M 4.9
South Sandwich Islands region
Unknown · 2026-09-12 11:05 UTC
78.2 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
25.4 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
75.8 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
17.3 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
75.6 km
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