Earlier tsunami threat to Puerto Rico and the US and British Virgin Islands is cancelled after powerful and shallow quake A 7.8-magnitude earthquake in central America has led to a tsunami warning for Puerto Rico, and the US and British Virgin Islands. Photograph: US Tsunami Warning Center . An earthquake of magnitude 7.6 that struck in the Caribbean sea on Tuesday was felt across northern Central America, briefly prompting a tsunami warning for disaster-hit Puerto Rico and the British and US Virgin Islands.The US Tsunami Center later cancelled the alert but warned some parts of Honduras and Belize were still at risk from waves of up to a metre. A new challenge looms for British Virgin Islands: how to clean up hurricane mess The quake – which hit at 10.52pm local time – rattled windows in the Honduran capital of Tegucigalpa r...