It was felt as far away as Vanuatu.
It said waves 1m to 3m (3.3ft to 9.8ft) above tide level were possible along the coasts of New Caledonia and Vanuatu, with waves of 0.3m to 1m above tide level for coasts of Fiji.
The PTWC issued tsunami wave warnings for Anatom Island and Esperitu Santo in Vanuatu and Noumea in New Caledonia. He said the waves travelled only a couple of metres beyond the normal tidal waves, and that everybody was fine on the island.
"We get a lot of earthquakes every year", he said.
Gautam Gambhir announces retirement from all forms of cricket
Though Gambhir could not make a comeback to the India side after 2016, he continued to play domestic cricket for Delhi. His final match will be on his home ground for Delhi against Andhra in the Ranji Trophy, starting on Thursday.
The Joint Australian Tsunami Warning Centre advises there is no tsunami threat to Australia.
"Hazardous tsunami waves are forecast for some coasts", the Pacific Tsunami Warning Center said, after earlier warning that the danger zone included "coasts located within 1000 kilometres of the natural disaster epicentre".
The warning urged evacuation for threatened coastal areas, saying "tsunami waves have been observed".
The US Geological Survey (USGS) said the quake struck southeast of Loyalty Islands, New Caledonia at a depth of 10 kilometres. At least five aftershocks also hit, ranging in magnitude from 5.6 to 6.0.
Sixers' Fultz diagnosed with nerve condition
Fultz seemed to think it was the former, while the team seemed to think it was the latter. Ever since he was drafted No. 1 overall, Fultz has dealt with issues.
It spreads across 40,000km (25,000 miles) from the southern tip of South America all the way to New Zealand.
Its citizens last month rejected independence in a referendum, though the vote revealed lower-then-expected support for remaining part of France.
It sits on the Pacific "Ring of Fire", the arc of seismic faults around the Pacific Ocean where most of the world's earthquakes and volcanic activity occur.
Body found near Costa Rican villa where Florida woman went missing
A US State Department representative told CNN that officials are aware of the reports of a missing American in Costa Rica. Before the news broke, Stefaniak's family and friends held out hope she was still alive. "Carla is very communicative".