M5.3 earthquake – central Mid-Atlantic Ridge

An M5.3 earthquake was recorded at 13:51 UTC on June 19, 2025, in the central Mid-Atlantic Ridge. The hypocenter was determined at a shallow depth of 10.0 km (6.2 miles), based on information from the USGS.

The quake’s epicenter was positioned at approximately 31.3°S, 3.0°W, placing the event amid the oceanic spreading center known as the Mid-Atlantic Ridge, far from any major landmass or populated area.

Given the offshore, remote mid-ocean location, no significant critical infrastructure such as ports, highways, or energy facilities are situated in the immediate vicinity.

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

The significance index is 432 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

The Mid-Atlantic Ridge is an active tectonic plate boundary between the Eurasian and North American Plates in the north, and the South American and African Plates in the south, frequently experiencing moderate seismicity related to plate divergence.

This information was last updated at 14:20 UTC on June 19, 2025.

Source: https://earthquake.usgs.gov/earthquakes/eventpage/us6000ql87