The undersea quake was only 10km deep and about 155km east-southeast of the Loyalty Islands off New Caledonia's east coast.
New Zealand officials issued a statement saying there was no tsumani threat to New Zealand.
They said initial tsunami waves could arrive between 4:42pm UTC and 5:39pm UTC but warned that the actual arrival time of the wave could differ from this and warned that "a tsunami is a series of waves and the time between waves can be five minutes to one hour" and that the initial wave may not be the largest and most risky in the series.
The Pacific Tsunami Warning Centre immediately issued a warning that hazardous tsunami waves could possibly affect locations up to 1000km away - including New Caledonia and Vanuatu - and that tsunmai waves had been observed. It said waves of up to 3 feet were possible in Fiji.
Ripples of less than 0.3 meters can be observed off the coasts of an array of states and territories, including in the U.S., such as Guam and Hawaii, as well as in Australia and Japan. The epicenter of the quake was some 300 kilometers east of the capital of New Caledonia, Noumea, but such was the force of the shock that experts said small tsunami waves might be detectable as far away as Antarctica and Russian Federation.
‘A Smoking Saw’: US Senators Leave CIA Briefing Convinced MBS Killed Khashoggi
Mr Khashoggi, a U.S. resident who wrote for the Washington Post , had been a fierce critic of the crown prince before his death. CIA Director Gina Haspel is headed to Capitol Hill to brief Senate leaders on the death of Saudi journalist Jamal Khashoggi .
New Caledonia is made up of a group of islands to the east of Australia.
Like this story? Share it with a friend!
The quake had a preliminary magnitude of 7.5 and rattled the area just after 8 p.m., according to the United States Geological Survey.
But people in New Caledonia and nearby Vanuatu said they did not feel the quake, and tsunami warning sirens were not immediately activated in Vanuatu.
Its citizens last month rejected independence in a referendum, though the vote revealed lower-then-expected support for remaining part of France.