Magnitude 6.7 (mww), 9 km deep, Bouvet Island region — 54.26°S, 8.61°E. October 10, 2017 at 18:53 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. Felt reports to USGS: 1. https://earthquake.usgs.gov/earthquakes/eventpage/us1000apql Data: US Geological Survey (public domain).