Magnitude 6.6 (mww), 10 km deep, 136 km W of Neiafu, Tonga — 18.57°S, 175.27°W. November 4, 2019 at 22:43 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/us7000635e Data: US Geological Survey (public domain).