Hunga Tonga-Hunga Ha’apai volcano (Tonga) activity update: preliminary measurements estimate 39 km eruption cloud

The massive eruption plume seen from space (image: Himawari-8)

Based on preliminary satellite data from global weather radars, an estimated height of the eruption column likely reached an altitude of 39 km (128,000 ft)!
This detail has yet to be confirmed, but if correct, that’s the highest eruption plume in modern times ever.