Halema‘uma‘u lava lake levee overflow
A small amount of lava spatter was thrown from the west vent in Halema‘uma‘u crater, at Kīlauea summit, on December 20, 2021. Lava continued to flow into the lake from a source north (left) of the main vent cone. Multiple sources of degassing can be seen on and around the vent cone. USGS photo by B. Carr.