Shallow M5.7 earthquake hits south of Severo-Kuril’sk, Russia on November 4, 2025 (Updated)

A shallow M5.7 earthquake hit at 23:49 UTC on November 4, 2025, about 107 km (66 miles) south of Severo-Kuril’sk, Russia. The earthquake occurred at a depth of 66.3 km (41.2 miles).

The coordinates place the seismic event offshore, south of the Kuril Islands, in the northwest Pacific region at 49.7°N, 155.9°E. Severo-Kuril’sk is the closest populated locality, with the area characterized by remote islands and sparse settlements.

Given its offshore location in the Kuril Islands region, the area is primarily accessed via small ports and airstrips. The region has limited critical infrastructure, mainly serving local transportation and fishing industries.

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 IV. The significance index is 500 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

The Kuril Islands lie along the tectonically active boundary between the Pacific Plate and the Okhotsk Plate, part of the wider Pacific “Ring of Fire” known for significant seismic and volcanic activity.

This information was last updated at 05:06 UTC on November 5, 2025.