Magnitude 6.9 (mww), 15 km deep, South Shetland Islands — 61.81°S, 55.50°W. January 23, 2021 at 23:36 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/us7000d2rx Data: US Geological Survey (public domain).