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June 19, 2023

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

Hawaiian Volcano Observatory 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. The eruption is occurring within Halemaʻumaʻu, a location that is significant to Native Hawaiian communities because it is the home of the deity Pele.

Color image of crater floor temperature
A helicopter overflight on June 16, 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 supplying lava flows covering the southwest portion of the crater floor. 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.
Color image of crater floor temperature
A helicopter overflight on June 16, 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 supplying lava flows covering the southwest portion of the crater floor. 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.
Color images of crater floor temperatures
This compilation shows a sequence of thermal maps of the ongoing eruption in Halema‘uma‘u crater, at the summit of Kīlauea. The high initial eruption rates in the opening day of the eruption supplied numerous lava fountains that covered the entire crater floor with new lava. Over the next few days the eruption rates declined and stabilized, supplying a smaller area of active lava in the southwestern portion of the crater. 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.

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