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The eruption in Halema‘uma‘u crater continues, The eruption, which is occurring in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, began yesterday morning, June 7, 2023.

HVO scientists collect detailed data to assess hazards and understand how the eruption is evolving at Kīlauea's summit, all of which are shared with the National Park Service and emergency managers. Access to this hazardous area is by permission from, and in coordination with, Hawai‘i Volcanoes National Park.

New lava on Halemaʻumaʻu crater floor
A telephoto view of the locus of four lava fountains in the southern part of Halema‘uma‘u's active lava lake during the mid-afternoon of June 7, 2023. These fountains were approximately 4-9 meters (13-30 feet) high throughout the afternoon, with occasional bursts that were higher. USGS photo by K. Lynn.
New lava on Halemaʻumaʻu crater wall
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. This flow is feeding lava into the southwestern part of the newly formed lava lake. USGS photo by D. Downs.
Temperature of Halemaʻumaʻu crater floor
A helicopter overflight on June 7, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The overflight happened about two hours after the start of the new eruption at the summit, and eruptive activity consisted of lava fountaining and lava lake activity. The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures.
Temperature of Halemaʻumaʻu crater floor
A helicopter overflight on June 7, 2023, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The overflight happened about two hours after the start of the new eruption at the summit, and eruptive activity consisted of lava fountaining and lava lake activity. The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures.
New lava on Halemaʻumaʻu crater floor
In the early evening on June 7, 2023, the fissure in the southwest wall of Halema‘uma‘u had built up walls of spatter around the fountain. The fissure was continuing to pour lava down the talus slope into the active lava lake below. USGS photo by K. Lynn.
New lava on Halemaʻumaʻu crater floor
Lava fountaining from a fissure that cut across the southwest wall of Halema‘uma‘u on June 7, 2023, had built up a small cone structure by mid-day. The fissure was intermittently obscured by plumes of volcanic gases throughout the day. USGS photo by K. Lynn.
Geologist making observations of eruption
A Hawaiian Volcano Observatory scientist makes measurements of the rising active lava lake using a laser rangefinder mid-day on June 7, 2023. These data are used to track the evolving features on the crater floor Halema‘uma‘u, such as the height of the lava fountains, and the geometry of the fissure in the southwest wall of Halema‘uma‘u crater as it built up a spatter cone. USGS photo by N. Deligne.
A new eruption began in Halema‘uma‘u crater, at the summit of Kīlauea, on the morning of June 7. This overflight occurred about two hours after the eruption onset and shows extensive lava fountaining supplying a rising lava lake within the crater. All lava is contained within the summit caldera. USGS video by M. Patrick.

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