March 2, 2022 — Kīlauea active lava lake distal margin

Telephoto view of the distal (east) margin of the active lava lake within Halema‘uma‘u crater at the summit of Kīlauea. Minor spattering is visible along the margin, as well as two zones of crustal foundering (a process in which more cool and dense crust at the surface sinks into the molten material below). USGS image by K. Mulliken.