Images

A USGS Hawaiian Volcano Observatory geologist surveys the elevation at a point along a transect across the new Pu‘u, formed from tephra fallout from the ongoing eruption at Kīlauea's summit. At each repeat measurement site, data is collected for at least 4 minutes. The geologist is on the south side of the Pu‘u and is looking north towards its summit.

This view is of the cone (pu‘u) that has formed in the predominant downwind direction (southwest) of the north and south vents during the ongoing eruption at Halema‘uma‘u at the summit of Kīlauea. This photo is south of the southwest corner of Halema‘uma‘u and is looking to the north-northwest.

For over a year, after each fountaining episode at Kīlauea's summit, USGS Hawaiian Volcano Observatory geologists have surveyed the elevation along a transect across the new pu‘u on the western margin of Halema‘uma‘u. These repeat measurements across the same set of points, spaced about 330 feet (100 meters) apart, track the growth and changes of the pu‘u.

Before and after photos of vegetation defoliation outside the new USGS Hawaiian Volcano Observatory Field Station building located near the Kilauea Military Camp inside Hawaiʻi Volcanoes National Park. Left photo was taken on February 11, 2026. Right photo was taken on April 21, 2026. USGS photos by K. Mulliken.

Signs of renewed growth on vegetation in areas hit hard by recent storm and volcanic impacts in the Kīlauea Summit region. Photos courtesy of Pete Lockhart and Jill Briggs. 

This map shows lava flow and tephra accumulation at the summit of Kīlauea volcano associated with episode 48 of the ongoing eruption in Halemaʻumaʻu that started on December 23, 2024, using data recorded by the Italian Space Agency's (ASI) COSMO-SkyMed Second Generation satellite constellation.

COSMO-SkyMed Second Generation (CSG) interferogram for the period from May 25 to June 2, 2026, covering Kīlauea volcano’s summit region.

This photo was taken from near the Ka‘ū Desert trailhead within Hawai‘i Volcanoes National Park on June 1, 2026, during episode 48 of lava fountaining at Kīlauea summit. It shows the top of the north vent lava fountain on the skyline to the right and the volcanic plume rising above it.

This photo of the Halema‘uma‘u north vent lava fountain was captured shortly after sunrise on June 1, 2026, around the time that activity was peaking during Kīlauea summit eruption fountaining episode 48. Preliminary estimates indicate that the lava fountain reached at least 500 feet (150 meters) in height during the episode.

During episode 48 of lava fountaining at the summit of Kīlauea on June 1, 2026, the lava fountain from the north vent reached a maximum height of almost 650 ft (200 m) at its peak around 6:30 a.m. HST. This photo was taken at 8:00 a.m. HST, nearly an hour and a half later, and shows a fountain of around 500 ft (152.5 m). USGS photo by L. Gallant.

Visitors at Uēkahuna overlook in Hawaiʻi Volcanoes National Park at approximately 6:30 a.m. HST on June 1, 2026, viewed lava fountaining from the north vent during episode 48 of the ongoing Kīlauea summit eruption, framed by a rainbow. USGS photo by L. Gallant. 

Episode 48 lava fountain from the north vent in Halemaʻumaʻu crater, at the summit of Kīlauea volcano, as viewed from near Uēkahuna overlook in Hawaiʻi Volcanoes National Park. USGS photo by M. Decker. 

Rain at Kīlauea summit following nine hours of lava fountaining during episode 48 on June 1, 2026, created steamy conditions within Halemaʻumaʻu, the crater floor of which was 40% covered with new lava flows during the episode. In the V1cam, a prominent whirlwind (puahiohio in ʻŌlelo Hawaiʻi, or the Hawaiian language) was visible forming at 4:47 p.m.

Episode 48 of lava fountaining in the ongoing eruption at Kīlauea summit started on June 1, 2026, at 4:40 a.m. HST. This photo was taken shortly after 6 a.m. from Uēkahuna overlook in Hawai‘i Volcanoes National Park, and shows the north vent lava fountain.

Photo calendar compilation of the 48 lava fountaining episodes that have occurred at Kīlauea's summit eruption. The eruption started on December 23, 2024, and episode 48 occurred on June 1, 2026.

About 5 miles (8 km) east northeast of the eruption location in Halemaʻumaʻu crater at the summit of Kīlauea, ash and Pele's hair accumulated on the hood of a white vehicle during episode 48 of lava fountaining on June 1, 2026.

In the early morning hours of June 1, 2026, USGS Hawaiian Volcano Observatory scientists reported to Uēkahuna to watch the beginning of Kīlauea summit eruption fountaining episode 48. The fountaining episode began at 4:40 a.m. HST and by the time the scientists arrived around 5:00 a.m.

Lava fountains of episode 48 started at 4:40 a.m. HST from the north vent in Halema‘uma‘u crater at the summit of Kīlauea volcano. Lava fountains have reached a maximum height of almost 650 ft (200 m) at their peak, shown here in a photo taken at 06:19 a.m. HST. USGS photo by L. Gallant.

This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. Most of the data for this map were collected during a USGS Hawaiian Volcano Observatory helicopter overflight on May 22, 2026, so the provided statistics are reflective of the entire eruption through episode 47 on May 14–15.

An aerial view from the west side of Halemaʻumaʻu shows the 150-foot (45 meter) high tephra cone that has formed on the rim of the crater during the 2024–ongoing eruption at the summit of Kīlauea. Gas emitted from the north and south vents, not currently erupting, is visible wafting over the rim of the crater. USGS photo by D. Downs.

As USGS Hawaiian Volcano Observatory traversed under the volcanic plume from Kīlauea summit where it was transported downwind into the Kaʻū Desert area of Hawaiʻi Volcanoes National Park, they captured this view of the Maunaiki  shield and Kaʻū Desert trail.