A 7.2-magnitude earthquake struck the Pacific island group Vanuatu early on Thursday. There were no immediate reports of loss of life.
The US Geological Survey said the epicentre of the quake was at 235 km north-north-west of Port Villa, Vanuatu's capital, at a depth of around 147.8 km below the surface of the Pacific Ocean.
Spokesman for the Vanuatu government meteorological office Jesse Benjamin said the quake was felt strongly on the central island of Santo, according to Australian Broadcasting Corporation radio.
Speaking from Port Vila, he said there were cracks in the roads, some offices were damaged and the power went down.
However, no tsunami warning has been issued.