USGS Hawaiian Volcano Observatory scientists documented episode 32 of Kīlauea's ongoing summit eruption from the Kīlauea Overlook within Hawaiʻi Volcanoes National Park. There, tephra from the lava fountain was visibly lofted high into the air by buoyant degassing during the eruption. USGS photo by C. Cauley. 

From the Kīlauea Overlook within Hawaiʻi Volcanoes National Park, USGS Hawaiian Volcano Observatory scientists documented episode 32 of the Kīlauea summit eruption that began on December 23, 2025. Looking west, the lava fountain from the north vent was visible reaching up to about 330 feet (100 meters) high, while lava flows from the south vent were visible in the background. USGS photo by C. Cauley.

Aerial view of the episode 32 lava fountain within Halema‘uma‘u during a USGS Hawaiian Volcano Observatory monitoring helicopter overflight at approximately 1:00 pm on September 2, 2025. Three vents were erupting from the western side of Halemaʻumaʻu, and feeding lava flows into the western side of the crater. The silvery lava on the right side (north) of the photo is a new lava flow being emplaced from the north vent. The darker black lava flows were emplaced during episode 31. USGS photo by D. Downs.

USGS Hawaiian Volcano Observatory scientists conducted an aerial overflight during episode 32 of the ongoing Kīlauea summit eruption. This view, taken at approximately 12:45 p.m. HST on September 2, 2025, shows three vents erupting from the western side of Halemaʻumaʻu, with lava flows reaching close to the eastern side of the crater floor. USGS photo by D. Downs.

USGS Hawaiian Volcano Observatory scientists conducted an overflight of Kīlauea summit to conduct an aerial photo survey and collect lava samples of the current episode. This photo shows the helicopter passing in front of the outgassing plume on its way into the caldera. USGS photo by M. Patrick.

From the north rim of Halemaʻumaʻu crater, USGS Hawaiian Volcano Observatory scientists document eruptive activity during episode 32 of the ongoing Kīlauea summit eruption. USGS photo by K. Mulliken.

Vigorous lava fountaining during episode 32 of the ongoing Kīlauea summit eruption, on September 2, 2025, fed multiple lava channels on Halemaʻumaʻu crater floor. These lava channels transported erupted material from the west part of the crater, where the eruption was occuring, to the east side of the crater. USGS photo by N. Kohagura. 

Lava fountaining from the north vent during episode 32 of Kīlauea's summit eruption fed a wide channel on Halemaʻumaʻu crater floor. USGS photo by N. Kohagura.