| Magnitude | 6.3 |
| Alert | Severe |
| Depth | 33.0 km |
| Coordinates | -56.121, -26.578 |
| UTC time | 1999-10-18 02:43:23.870 |
Earthquake details
Monday, October 18, 1999 Earthquake
The earthquake hit South Sandwich Islands region on Monday, October 18, 1999 at 02:43 UTC with a magnitude of 6.3. The closest known location in the current dataset is Ushuaia, about 2597.6 km away. The epicenter is located at longitude -26.578 and latitude -56.121.
| Location | South Sandwich Islands region |
| Country | South Sandwich Islands region |
| Severity | Severe |
Earthquake map 1999-10-18
Closest countries
The 12 closest cities near the epicenter.
| Ushuaia | 2597.6 km |
| Río Grande | 2602.6 km |
| Río Gallegos | 2796.3 km |
| Punta Arenas | 2825.2 km |
| Caleta Olivia | 2994.3 km |
| Comodoro Rivadavia | 3031.3 km |
| Mar del Plata | 3051.1 km |
| Necochea | 3068.7 km |
| Trelew | 3080.7 km |
| Puerto Madryn | 3100.1 km |
| Balcarce | 3102.8 km |
| Viedma | 3128.1 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
22.8 km
M 5.0
South Sandwich Islands region
Unknown · 2026-09-04 06:45 UTC
26.0 km
M 6.2
South Sandwich Islands region
Unknown · 2026-09-02 23:46 UTC
82.9 km
M 5.2
South Sandwich Islands region
Unknown · 2026-09-02 10:54 UTC
36.7 km
M 4.4
South Sandwich Islands region
Unknown · 2026-08-31 21:46 UTC
93.0 km
M 5.1
South Sandwich Islands region
Unknown · 2026-08-30 03:55 UTC
45.7 km
M 5.0
South Sandwich Islands region
Unknown · 2026-07-29 10:30 UTC
55.9 km
M 4.6
South Sandwich Islands region
Unknown · 2026-07-12 15:15 UTC
37.5 km
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