Hunga Tonga–Hunga Haʻapai is a submarine volcano in the South Pacific located about 30 km south of the submarine volcano of Fonuafoʻou and 65 km north of Tongatapu, Tonga's main island. From Wikipedia
New research overturns lamb-wave theory, confirming secondary gravity waves as the mechanism behind the 2022 eruption's atmospheric ripples impacting satellites.
