According to Hindustan Times,
The Pacific Tsunami Warning Centre reported that a 7.7 magnitude earthquake in the far Pacific generated modest tsunami waves in Vanuatu because waves less than 1.5 feet in height were observed off the port city of Lenakel. It noted that smaller waves were measured elsewhere.
The National Disaster Management Office of Vanuatu recommended people to leave coastal areas for higher ground and advised them to keep an eye on their radios for updates as well as take other safety precautions. The National Emergency Management Agency of New Zealand also stated that it anticipated strong and unusual currents in coastal locations.