Strong mag. 5.0 Earthquake - South Atlantic Ocean, 153 km north of Visokoi Island, South Georgia and the South Sandwich Islands

"A strong magnitude 5.0 earthquake occurred in the South Atlantic Ocean 102 km (63 mi) from South Georgia and the South Sandwich Islands late in the evening at 10.00 pm local time (GMT -2). The quake had a very shallow depth of 25 km (16 mi) and was not felt (or at least not reported so)." VD