Magnitude 6.5 (mww), 15 km deep, 99 km SE of Atka, Alaska — 51.64°N, 173.07°W. November 9, 2015 at 16:03 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. https://earthquake.usgs.gov/earthquakes/eventpage/us10003vyx Data: US Geological Survey (public domain).