WorldPowerful earthquake of magnitude 7.6 shakes Costa RicaKatrina JonesSeptember 6, 2012September 6, 2012 by Katrina JonesSeptember 6, 2012September 6, 2012 San Jose, Costa Rica: A powerful 7.6-magnitude earthquake jolted Costa Rica on Wednesday, killing at least two people and injuring 22 others. A brief tsunami...