Fissures Feed a Lava Lake at Halema'uma'u, at Kīlauea Volcano's Summit. Since fissures opened on December 20, 2020 in Halema'uma'u crater, USGS–Hawaiian Volcano Observatory scientists have maintained a 24-hour watch from the rim, taking measurements and making visual observations. This video captures fountaining activity at the two active vents during the early morning hours of December 22. The second video shows a wind vortex on the lava lake, strong enough to rip up pieces of the lake’s crust. The sounds are of the fountaining activity, with a few faintly audible remarks from scientists.

Video at: https://www.usgs.gov/media/videos/fissures-lava-lake-wind-vortex-halema-uma-u-k-lauea