Magnitude 6.6 (mww), 10 km deep, southwest of Africa — 53.06°S, 9.68°E. January 28, 2018 at 16:03 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. https://earthquake.usgs.gov/earthquakes/eventpage/us2000cqnn Data: US Geological Survey (public domain).