Magnitude 6.9 (mww), 17 km deep, South Sandwich Islands region — 58.37°S, 23.36°W. August 16, 2021 at 11:10 UTC. Tsunami: USGS flags this quake as having caused one, or the potential for one. Felt reports to USGS: 3. https://earthquake.usgs.gov/earthquakes/eventpage/us6000f6wt Data: US Geological Survey (public domain).