The U.S. Geological Survey (USGS) reported a magnitude 6.6 earthquake in the central Mid-Atlantic Ridge at 18:56:58 UTC on June 17, 2026. The epicenter was located at 0.525°S, 20.015°W, approximately 10 kilometers (6.21 miles) below the ocean surface.
The USGS assigned a GREEN PAGER alert to this event, indicating minimal expected impact on populations and infrastructure. The Mid-Atlantic Ridge location, situated in open ocean far from inhabited land masses, significantly limits direct human exposure. No immediate reports of damage or casualties have been documented.
Authorities are monitoring the seismic event and its aftershock potential through established earthquake monitoring networks. Maritime operators in the region should remain alert for any unusual ocean conditions. The USGS continues to analyze seismic data to refine hazard assessments. This is a developing story.
Source: M 6.6 – central Mid-Atlantic Ridge
Developing story. Figures are preliminary and may change. As reported by USGS Significant Earthquakes; captured Jun 18, 2026 03:05 (Asia/Tbilisi). Primary source: USGS Significant Earthquakes.
Was this article helpful?
