5.8 Earthquake - South Atlantic Ocean, 158 km south of Isla Hornos Island, Provincia Antartica Chilena, Region de Magallanes y Antartica Chilena, Chile

"A strong magnitude 5.8 earthquake occurred in the South Atlantic Ocean 158 km (98 mi) from Chile in the evening at 9.26 pm local time (GMT -4). The depth of the quake could not be determined, but is assumed to be shallow. The quake was not felt (or at least not reported so)." msn