Magnitude 6.5 (mww), 15 km deep, South Sandwich Islands region — 56.41°S, 25.74°W. May 10, 2017 at 23:23 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. https://earthquake.usgs.gov/earthquakes/eventpage/us10008rb6 Data: US Geological Survey (public domain).