Magnitude 7.1 (mww), 10 km deep, north of Ascension Island — 0.05°S, 17.83°W. August 29, 2016 at 04:29 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. Felt reports to USGS: 8. https://earthquake.usgs.gov/earthquakes/eventpage/us20006uy6 Data: US Geological Survey (public domain).