January 20, 2023 — Lava lake activity in Halema‘uma‘u, Kīlauea
Lava lake activity continues in Halema‘uma‘u crater, at the summit of Kīlauea, on January 20, 2023. Lava upwells at the fountain source and spreads out towards the lake margin, where it downwells. Overall, activity in the crater has been steady in recent days. USGS photo by M. Patrick.