Huge quake jolts Costa Rica, two killed

A powerful 7.6-magnitude earthquake struck Costa Ricas Pacific coast Wednesday, killing two people, briefly knocking out power and phone lines, and triggering tsunami warnings, authorities said.Residents reported trees toppled, rooftops damaged and roads split by the quake near the epicenter in the coastal province of Guanacaste. People rushed into the streets 150 kilometers (95 miles) away in the capital San Jose.A Red Cross spokesman said a man and a woman died after suffering heart attacks in the town of Filadelfia, not far from Nicoya, which is roughly 10 kilometers (six miles) from the epicenter.Here in Nicoya, fortunately we have only seen very minor injuries, people with minor cuts -- nothing significant given the magnitude of the storm, said the spokesman, Adolfo Saenz.Costa Rican President Laura Chinchilla said: The most important thing is to remain calm, there is no major damage.The US Geological Survey initially said the quake, which struck off the Pacific coast of Costa Rica, measured 7.9 on the Moment Magnitude Scale, but revised both the intensity and location in a subsequent advisory.In its latest advisory, the USGS said the quake measured 7.6 and struck at a depth of about 40 kilometers.A tsunami warning was issued for Costa Rica, Panama and Nicaragua, but later cancelled, the US Pacific Tsunami Warning Center said. Initially, the warning had extended from Mexico to Peru.