Images

During a Kīlauea summit eruption field observation shift on June 12, Hawaiian Volcano Observatory geologists noted that lava was not flowing down the surface of the western vent in Halema‘uma‘u crater wall, though the vent was still fuming. USGS photo by J. Schmith.

The lava on the surface of Halema‘uma‘u crater is hot and fluid even though it quickly grows a dark crust. When the crust forms, it becomes denser than the fluid lava below and starts to sink into it. The fluid red lava below forms thin lobes above the sinking crust. We call this process crustal foundering—an overturn of the crust.

Crustal foundering in Halema‘uma‘u crater forms a beautiful color pattern of crustal plates separated by cracks. The darker colors along the cracks are newly cooled thin lobes of lava. USGS photo by J. Schmith.

A helicopter overflight on June 12, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The eruptive activity has consisted of lava fountaining and lava lake activity, confined within the crater. The area of active lava has diminished in recent days.

In this telephoto view of the eruption within Halema‘uma‘u crater, lava flows from right to left from an outlet in lower right side of photo. As lava flows, the outlet slowly grows a soft crust of dark lava fingers. USGS photo by J. Schmith on June 12, 2023.

From the southwest part of Halema‘uma‘u crater rim, Hawaiian Volcano Observatory geologists were able to view into vent perched on the western wall. On June 12, they observed that lava was still spattering inside the vent, but rarely making it out of the top. USGS photo by J. Schmith.

A close-up of the glowing vent on Halema‘uma‘u lava lake surface shows that it is built from clots of spatter that have welded together. USGS photo by J. Schmith.

A helicopter overflight on June 12, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The eruptive activity has consisted of lava fountaining and lava lake activity, confined within the crater. The area of active lava has diminished in recent days.

Hawaiian Volcano Observatory scientists use an FTIR to measure volcanic gas at the Halemaʻumaʻu crater eruption site. The FTIR is aimed at the hot, glowing lava and the volcanic gas between the lava and the FTIR can be measured.

On the afternoon of June 9, 2023, the fissure on the southwest wall of Halema‘uma‘u crater was still active and had formed a spatter cone. The vent was feeding lava flows down into the still active Halema‘uma‘u lava lake below. USGS photo by K. Lynn.

Low fountaining has been active where lava upwells into Halema‘uma‘u crater, at the summit of Kīlauea. This video shows a series of small fountains in the southern portion of the crater floor. Camera shake is due to high winds at the time.

The Hawaiian Volcano Observatory's B1cam was located on the east rim of the downdropped block within Kīlauea’s summit caldera, overlooking Halema‘uma‘u crater to the west. The eruption that began within Halema‘uma‘u crater the early morning of June 7, 2023, flooded the crater floor with lava and the B1cam was exposed to intense heat.

View from the west rim of Halema‘uma‘u crater, showing the new lava flows that have covered the crater floor since the morning of June 7, 2023. This photograph, taken the morning of June 8, 2023, shows several active fissure vents that are feeding lava flows that cover the floor of the crater.

A telephoto view looking down on the fissure vent in the talus pile in the southwest corner of Halema‘uma‘u crater, taken from the western crater rim. Over the past 24 hours, this fissure vent has built up a spatter cone and spatter ramparts around its lava flow that cascades down to the crater floor.

A summit eruption of Kīlauea volcano, within Halemaʻumaʻu crater, began at approximately 4:44 a.m. on June 7, 2023. This photo, taken from the publicly accessible Kīlauea Overlook at approximately 5:30 a.m. HST, shows that lava is flowing on the crater floor and there are several active vent sources.

A summit eruption of Kīlauea volcano, within Halemaʻumaʻu crater, began at approximately 4:44 a.m. on June 7, 2023. Lava is flowing on the crater floor and there are several active vent sources. The eruption at Kīlauea’s summit is occurring within a closed area of Hawai'i Volcanoes National Park and high levels of volcanic gas are the primary hazard of concern.

HVO scientists conducted an overflight of the new eruption within Halemaʻumaʻu crater at the summit of Kīlauea volcano, within began the morning of June 7, 2023. This aerial photo shows that multiple vent sources are active on the crater floor, much of which has been covered with new lava over the past several hours.

The B1cam, located on the down-dropped block west of Halemaʻumaʻu crater, is one of several Hawaiian Volcano Observatory webcams that are documenting the ongoing eruption at Kīlauea summit. You can view all Kīlauea summit webcams here: Summit Webcams | U.S.

USGS Hawaiian Volcano Observatory geologists collected samples erupted on June 7, 2023, during the new eruption within Halemaʻumaʻu crater. The samples were collected from the rim of the crater, and range in size up to several inches (6 cm) in size. The samples will be analyzed later for information about the lava erupted during.

A summit eruption of Kīlauea volcano, within Halemaʻumaʻu crater, began at approximately 4:44 a.m. on June 7, 2023. Lava is flowing on the crater floor and there are several active vent sources. The eruption at Kīlauea’s summit is occurring within a closed area of Hawai'i Volcanoes National Park and high levels of volcanic gas are the primary hazard of concern.

A summit eruption of Kīlauea volcano, within Halemaʻumaʻu crater, began at approximately 4:44 a.m. on June 7, 2023. Lava is flowing on the crater floor and there are several active vent sources. The eruption at Kīlauea’s summit is occurring within a closed area of Hawai'i Volcanoes National Park and high levels of volcanic gas are the primary hazard of concern.