Images

Lava fountains during episode 41 of the ongoing Kīlauea summit eruption on January 24, 2026. This photograph was taken by the USGS Hawaiian Volcano Observatory K2cam, which is located on a tower near the Uēkahuna overlook in Hawaiʻi Volcanoes National Park. USGS photo. 

USGS Hawaiian Volcano Observatory scientists observed and documented episode 41 of the episodic Kīlauea summit eruption in Halema‘uma‘u. Lava fountains in both the north and south vents were active with maximum heights reaching 460-480 m (1500-1575 ft).

This photograph was taken at around 1:10 p.m. HST from the Volcano House Hotel within Hawaiʻi Volcanoes National Park. This photo shows the heights that the north and south vents achieved during episode 41 on January 24, with the latter reaching at least 450 m (about 1500 ft) at times.

USGS Hawaiian Volcano Observatory scientists observed and documented episode 41 of the episodic Kīlauea summit eruption in Halema‘uma‘u. This photograph, taken from the Keanakāko‘i Overlook in Hawaiʻi Volcanoes National Park, shows lava fountains from both the north and south vents, with tephra falling in the foreground. USGS photo by H. Winslow.

USGS Hawaiian Volcano Observatory scientists observed and documented episode 41 of the episodic Kīlauea summit eruption in Halema‘uma‘u. This photograph, taken from the Keanakāko‘i Overlook in Hawaiʻi Volcanoes National Park, shows lava fountains from both the north and south vents, with tephra falling in the foreground. USGS photo by H. Winslow.

USGS Hawaiian Volcano Observatory scientists observed and documented episode 41 of the episodic Kīlauea summit eruption in Halema‘uma‘u. This photograph, taken from the Keanakāko‘i Overlook in Hawaiʻi Volcanoes National Park, shows lava fountains from both the north and south vents, with tephra falling in the foreground. USGS photo by H. Winslow.

Photo of tephra on a water tank catchment cover in the Volcano area. Large clasts of reticulite, Pele's hair, and other ash particles fell heavily throughout the Volcano area and east side of the Island of Hawaiʻi during lava fountaining episode 41 at the summit of Kīlauea on January 24, 2026.

This plot shows the line length between two GPS stations in Kīlauea summit region (UWEV and OUTL) since the episodic summit eruption began on December 23, 2024. These stations are located on opposite sides of the caldera and the distance between them can be used as a proxy for pressurization within the shallow Halemaʻumaʻu magma chamber.

This map depicts the locations of approximately 300 earthquakes that have occurred between January 12 and 22, 2026, in the summit region of Kīlauea volcano. Most earthquakes have been smaller than magnitude-2, with locations broadly distributed beneath Halemaʻumaʻu and the south caldera region of Kīlauea summit.

A USGS Hawaiian Volcano Observatory geologist collects a sample of the short lava flows that were erupted from the south vent just before episode 40 lava fountaining began on January 12, 2026. All sampling in Halema‘uma‘u crater is done with permission from Hawai‘i Volcanoes National Park.

On Friday, January 16, USGS Hawaiian Volcano Observatory geologists conducted an overflight of Kīlauea summit to map the effects of episode 40 and collect samples of the lava. This wide-angle photo shows the episode 40 flows reaching the crater wall in the foreground, with the vents in the distance.

This photograph shows the current vent area at the summit of Kīlauea, with passive outgassing plumes originating from the south (left) and north (right) vents. The plumes are carried to the southwest by the tradewinds.

Left: Lava fountains on September 6, 1969, during the Maunaulu eruption. Right: Lava fountains on July 9, 2025, during the Halemaʻumaʻu eruption (episode 28). USGS photos.

This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. The data for this map were collected during a Hawaiian Volcano Observatory helicopter overflight on January 2, 2026; as such, the provided statistics are reflective of the first thirty-nine episodes of the eruption through December 24, 2025.

On January 12, 2026, Kīlauea had its 40th fountaining episode of the ongoing eruption within Halema‘uma‘u. This view was taken at 10:50 a.m. H.S.T. from the publicly accessible viewing area at Uēkahuna within Hawaiʻi Volcanoes National Park, showing north vent fountaining. USGS photo by N. Deligne. 

USGS Hawaiian Volcano Observatory geologists observe episode 40 fountains from the Uēkahuna overlook within Hawai‘i Volcanoes National Park. This episode had multiple days of precursory overflows from both the north and south vents, leading to fountains primarily from the north vent starting on January 12 and reaching up to 800 feet (250 meters).

On January 12, 2026, Kīlauea had its 40th fountaining episode of the ongoing eruption within Halema‘uma‘u. This photo was taken at 4:37 p.m. HST from the publicly accessible viewing area at Kūpinaʻi Pali (Waldron's Ledge) within Hawaiʻi Volcanoes National Park, showing north vent fountaining. The episode ended about an hour and a half after this photo was taken.

Satellite image of Kilauea Military Camp near Kīlauea summit in Hawaiʻi Volcanoes National Park and neighboring Volcano Golf Course subdivision taken on January 7, 2026, and showing green grass and vegetation surrounding infrastructure. Image credit: WorldView ©2026 Maxar, USG Plus.

Satellite image of Kilauea Military Camp near Kīlauea summit in Hawaiʻi Volcanoes National Park and neighboring Volcano Golf Course subdivision taken on January 7, 2026, and showing green grass and vegetation surrounding infrastructure. Image credit: WorldView ©2026 Maxar, USG Plus.

Kīlauea began its 39th lava fountaining episode the night of December 23, one year to the day from when this eruption began. This view was taken from the publicly accessible viewing area on Crater Rim Drive near Keanakākoi Overlook within Hawaiʻi Volcanoes National Park.

The lava fountains that erupted during episode 39 at the summit of Kīlauea were visible through the rain and mist around 10 p.m. HST on December 23. This episode was actively erupting for just about 6 hours from December 23-24, 2025. USGS photo.