Magnitude 6.6 (mww), 7 km deep, South Sandwich Islands region — 60.14°S, 24.22°W. August 22, 2021 at 00:45 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/us6000f9gd Data: US Geological Survey (public domain).