Magnitude 6.6 (mww), 10 km deep, northern Mid-Atlantic Ridge — 23.86°N, 45.80°W. March 21, 2026 at 12:16 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. https://earthquake.usgs.gov/earthquakes/eventpage/us6000si5l Data: US Geological Survey (public domain).