Strong M6.2 earthquake hits southern Mid-Atlantic Ridge
A strong earthquake registered by the USGS as M6.2 hit the southern Mid-Atlantic Ridge at 22:16 UTC on June 25, 2025. The agency is reporting a depth of 10 km (6.2 miles).
Epicenter of M6.2 earthquake southern Mid-Atlantic Ridge on June 25, 2025. Credit: TW/SAM, Google
The epicenter was located 460 km (290 miles) WNW of Edinburgh of the Seven Seas, Tristan da Cunha, Saint Helena, and 2 760 km (1 715 miles) ENE of Arraial do Cabo, Rio de Janeiro, Brazil.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
There are likely to be no affected structures in this region.
The Mid-Atlantic Ridge is a tectonic plate boundary separating the South American and African Plates, forming a prominent seismic zone known for frequent moderate to strong earthquakes related to seafloor spreading.
Estimated population exposure to earthquake shaking
Regional seismicity
References:
1 M6.2 earthquake southern Mid-Atlantic Ridge – USGS – June 25, 2025
I'm a dedicated researcher, journalist, and editor at The Watchers. With over 20 years of experience in the media industry, I specialize in hard science news, focusing on extreme weather, seismic and volcanic activity, space weather, and astronomy, including near-Earth objects and planetary defense strategies. You can reach me at teo /at/ watchers.news.
Commenting rules and guidelines
We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules.