ABC NewsPowerful quake hits Costa Rica, tsunami warning issuedReutersBy Isabella Cota | SAN JOSE, Costa Rica (Reuters) - A powerful earthquake rocked Costa Rica on Wednesday, rattling buildings, cutting power in areas of the capital and triggering a tsunami warning, though there were no immediate reports of casualties.Powerful earthquake reported in Costa RicaUSA TODAYMagnitude 7.6 Quake Knocks Out Power in Costa Rica's CapitalBusinessweekPowerful earthquake reported in Costa Rica, tsunami warnings canceledFox NewsChristian Science Monitorall 878 news articles »