A huge 7.7 magnitude earthquake hit off the coast of Jamaica today and unleashed devastation in the Caribbean.<br /><br />Hundreds were evacuated from "shaking" buildings in Miami and huge holes appeared in roads in the Cayman Islands after the quake rocked several countries.<br /><br />A tsunami warning was initially issued for the coasts of Belize, Cuba, Honduras, Mexico, Jamaica and the Cayman Islands.<br /><br />But the International Tsunami Information Center later clarified the threat triggered by the threat had "largely passed".<br /><br />Terrifying tremors were felt as far as Florida with some hotels and offices - including the Miami Tower skyscraper - being evacuated.