December 2, 2025—Halemaʻumaʻu crater overflight video

The USGS Hawaiian Volcano Observatory conducted the monitoring overflight of Halema‘uma‘u crater the morning of December 2, 2025. With permission from Hawai‘i Volcanoes National Park, scientists visited the crater floor to collect a sample of episode 37 lava and to take visual/thermal imagery that will allow us to map the distribution of material erupted during episode 37 (lava flows and tephra). Lava fountained only from the north vent during episode 37, for about 9 hours on November 25. The summit region of Kīlauea volcano has shown inflationary deformation since the end of episode 37, suggesting that another eruptive episode is possible. USGS video by K. Mulliken.