A magnitude 7.2 earthquake has struck waters about 200km west of Sola in northern Vanuatu.
The quake was at a depth of 10km, the United States Geological Survey (USGS) reported.
A second quake with a magnitude 6.9 hit around 197km west-northwest of Port Olry, also at a depth of 10km.
There were no immediate reports of damage or casualties.
In 2024, a 7.3 magnitude quake rocked Vanuatu, killing at least 14 people and injuring hundreds.
Vanuatu is located in a seismically active region where earthquakes occur due to the movement of tectonic plates.