A magnitude-7.0 earthquake has struck in the South Atlantic, south-west of the disputed Falkland Islands, the US Geological Survey said today.
The quake struck at 2.27am local time (0627 GMT), about 195 miles (314km) south-east of the Falklands' capital, Stanley, and 545 miles (877km) east of Ushuaia, Argentina. The depth was a shallow 6.2 miles (10km).
The Falklands are a British territory that is claimed by Argentina.
The USGS said the quake followed four others, which all measured more than 5.0, over a two-hour period leading up to the big quake. It says such quakes are uncommon in the region. Only 15 quakes of more than 5.0 had been measured in the region in the previous 40 years.