April 29, 2025 — Lava visible within both north and south vents between eruptive episodes at Kīlauea volcano

On April 29, the USGS Hawaiian Volcano Observatory undertook a helicopter surveillance flight over Halema‘uma‘u at the summit of Kīlauea volcano. At the time, the ongoing eruption was between eruptive episodes (episode 18 ended on April 22). In this photo looking down towards the northeast, lava is seen within both north vent through the volcanic gas (center) and south vent (bottom right). Lava flows from recent episodes cover most of the upper right half of the photo, and tephra from recent eruptive episodes blankets the bottom part of the photo, with a patch of discoloration caused by sulfur. USGS photo by N. Deligne.