Rockfall debris on lava lake surface crust—Kīlauea summit eruption

Rockfalls have been a frequent occurrence in Halema‘uma‘u crater, both before and during the current eruption. Debris from a recent rockfall can be seen sitting on the solidified lava lake crust (center). The crust on the southern edge of the lava lake is thick enough to support the weight of the boulders that have fallen. USGS photo taken by B. Carr on February 1 during a helicopter overflight.