M5.0 earthquake – central Mid-Atlantic Ridge

A shallow M5.0 earthquake was registered in the central Mid-Atlantic Ridge at 22:21 UTC on June 19, 2025. The earthquake occurred at a depth of 10.0 km (6.2 miles), based on data provided by the USGS.

The epicenter was located at coordinates 31.5°S, 3.0°W. This region is situated in the central segment of the Mid-Atlantic Ridge, an underwater mountain range in the Atlantic Ocean. There are no nearby populated areas, as the location is far from major landmasses.

Given the offshore location, no significant critical infrastructure such as airports, ports, or energy facilities are expected to be affected in the immediate vicinity of the quake.

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

The significance index is 385 (on a scale that runs through 1 000), based on magnitude and estimated impact.

The Mid-Atlantic Ridge is a divergent tectonic plate boundary where the Eurasian and North American plates move apart. It is a seismically active region, routinely producing underwater earthquakes of varying magnitudes.

This information was last updated at 22:41 UTC on June 19, 2025.

Source: https://earthquake.usgs.gov/earthquakes/eventpage/us6000qlca