World Map › Major Earthquakes Since 1900 › 2021
Historic Earthquake
2021 South Sandwich Islands Earthquakes
12 August 2021 · South Georgia and the South Sandwich Islands
On 12 August 2021 at 18:35 UTC, a magnitude 8.1 earthquake struck the South Georgia and the South Sandwich Islands, at a depth of 48 km. It occurred on the Sandwich Plate, 91 km from its boundary with the South American Plate (subduction zone). It triggered a tsunami.
- Date
- 12 August 2021
- Time
- 18:35 UTC
- Magnitude
- 8.1
- Depth
- 48 km
- Tsunami
- Yes
- Plate
- Sandwich Plate
- Country
- South Georgia and the South Sandwich Islands
- Nearest Volcano
- Montagu Island (61 km)
Nearby Major Earthquakes
Other major earthquakes recorded within 300 km.
- 20212021 South Sandwich Islands Earthquakes · M 7.5
- 1961South Georgia and the South Sandwich Islands · M 7.7
- 1961South Georgia and the South Sandwich Islands · M 7.7
- 1961South Georgia and the South Sandwich Islands · M 7.5
Sources: NOAA National Centers for Environmental Information, Global Significant Earthquake Database (doi:10.7289/V5TD9V7K) · Wikidata · Bird (2003), PB2002 · Natural Earth