The US Geological Survey (USGS) reported that a 7.7-magnitude quake struck 33km southeast of the Loyalty Islands.
The quake occurred 13:20:00 (UTC) and was centered at 23.251°S 171.485°E with a depth of 10.0 km.
The National Weather Service (NWS) tweeted that a review would be conducted to know if there is a potential tsunami threat to California, Oregon, Washington state, Alaska, and British Columbia, Canada.
The US Tsunami Warning System has already issued a 0.3-1 meters alert for Vanuatu and Fiji.
American Samoa is currently on watch but large waves are still a possibility.
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