Shallow M5.5 earthquake hits south of the Kermadec Islands

An earthquake with a magnitude of M5.5 was recorded at 13:22 UTC on April 5, 2026, south of the Kermadec Islands. The event took place at a shallow depth of 10.0 km (6.2 miles), as reported by the US Geological Survey (USGS), with the epicenter located at coordinates 32.0°S, 177.9°W.

The earthquake struck in a remote oceanic region south of the Kermadec Islands, an area notable for its distance from major population centers and its proximity to an active tectonic plate boundary. The nearest inhabited landmasses are the Kermadec Islands themselves, which are uninhabited except for occasional scientific staff.

Due to the remote, offshore location, critical infrastructure in the immediate area is minimal. The main maritime routes that pass through the South Pacific Ocean may be present, but there are no major ports, airports, or energy facilities in the vicinity of the epicenter.

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.

The maximum estimated intensity for this earthquake is VI, and the significance index is 465 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

The Kermadec Islands region lies along the boundary between the Pacific Plate and the Australian Plate. This area is known for frequent seismic activity, mainly due to the ongoing subduction of the Pacific Plate beneath the Australian Plate, resulting in earthquakes of moderate to substantial magnitude.

This information was last updated at 13:50 UTC on April 5, 2026.