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A magnitude 6.4 earthquake has struck Vanuatu, according to the European Mediterranean Seismological Centre (EMSM).
The earthquake hit about 83 kilometres north-west of Vanuatu's capital Port Vila at 9.23am local time (8.23am AEST) at a depth of 29km, EMSM has reported.
The Hawaii-based Pacific Tsunami Warning Centre said there was no risk of the quake causing a tsunami.
Vanessa Apuary, a Port Vila hotel worker, said the quake's impact "wasn't that big" considering its magnitude.
"It was heavy and slow, but didn't do any damage at all in Port Vila," Apuary told The Associated Press.
Vanuatu sits on the Pacific "Ring of Fire," the arc of seismic faults around the Pacific Ocean where much of the world's earthquake and volcanic activity occurs.
A magnitude 7.7 earthquake a year ago caused a small tsunami to wash ashore at Vanuatu but no damage was reported.
Earlier, The Bureau of Meteorology has said there is "no tsunami threat to Australia" because of the earthquake.
