Powerful quake strikes far south Atlantic: USGS

A powerful 7.8 magnitude undersea earthquake struck in the Scotia Sea, a remote region in the far south Atlantic near Antarctica, US earthquake monitors reported today.
The quake struck at 1434 IST in the ocean some 893 kilometers southwest of Grytviken, South Georgia, and 1,140 kilometers southeast of Ushuaia, Argentina, said the US Geological Survey, which monitors earthquakes worldwide.