Moderate M5.6 earthquake strikes near Port-Olry, Vanuatu

An M5.6 earthquake was recorded at 20:41 UTC on December 23, 2025, approximately 38 km (24 miles) north-northeast of Port-Olry, Vanuatu. The earthquake occurred at a depth of 171.0 km (106.3 miles), according to data provided by USGS.

The epicenter was located at 167.2°E, 14.7°S, placing it beneath northern Vanuatu, near the coast of Espiritu Santo island. This region consists of small towns and rural communities, with Port-Olry being one of the nearest settlements.

The earthquake’s location suggests possible impact on local infrastructure such as rural road networks, smaller ports, and local energy facilities commonly found in island settings. No major urban centers are situated immediately nearby.

There is no tsunami threat associated with this earthquake, based on its location and available data.

USGS issued a green alert for this event, indicating a low likelihood of casualties or damage. One felt report was submitted, and the maximum estimated intensity was IV on the Modified Mercalli scale. The significance index is 483 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

Vanuatu is located in a tectonically active region near the boundary between the Australian and Pacific Plates, where frequent intermediate and deep earthquakes occur due to subduction along the New Hebrides Trench.

This information was last updated at 21:10 UTC on December 23, 2025.