Deep M5.5 earthquake strikes south of the Fiji Islands

A deep earthquake with a magnitude of M5.5 was registered at 12:12 UTC on August 25, 2026, south of the Fiji Islands. The event was centered at coordinates 179.8°E, 23.3°S and recorded at a depth of 528.3 km (328.3 miles), as reported by USGS.

The epicenter places the quake beneath the oceanic region south of the Fiji Islands, an area known for deep seismicity along complex plate boundaries. There are no major towns or populated centers in the immediate vicinity of the epicenter, as this location is within the remote Fiji region.

Critical infrastructure in the affected area primarily includes international marine traffic routes and undersea telecommunications cables due to its offshore setting. There is no direct infrastructure or large population center nearby.

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

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

The Fiji region lies near the complex boundary between the Pacific and Indo-Australian Plates, an area characterized by frequent deep-focus earthquakes as a result of subduction processes.

This information was last updated at 12:31 UTC on August 25, 2026.