The police on the island of Tangoa in Vanuatu say a strong earthquake injured four people, and caused damage to buildings and the water supply.
The strong 6.5-magnitude quake struck at a depth of 39 kilometres about 45 kilometres west of the capital Port-Vila on Tuesday.
The police in the capital say the tremor was felt there, but there were no reports of damage.
But a Police Inspector on the central island of Tangoa, Paul Thomson, say many of that island's about 2000 inhabitants have been affected.
"We've got damage in our wells where we collect our rainwater [for drinking], they were all damaged, and some buildings have cracks on the walls and we have landslides. We have about four people who are injured, but no one died."
Paul Thomson says the injured are being looked after and are in a stable condition.