December 2, 2025—View of spatter-fed flow on crater rim, Kīlauea summit

This aerial photograph, taken during a USGS Hawaiian Volcano Observatory monitoring overflight the morning of December 2, 2025, shows volcanic gas wafting over the tephra-blanketed rim of Halemaʻumaʻu crater. The ripple-like deposits on the right side of the image, on the crater rim, are spatter-fed lava flows that formed during episode 34 on October 1. Enough lava from the fountaining landed on the crater rim during episode 34, to accumulate and flow a short distance. This was the only lava flow on the crater rim so far in this eruption. USGS photo by K. Mulliken.