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November 23, 2022

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. 

November 23, 2022 — Kīlauea Summit Eruption, Halemaʻumaʻu Observations

The eruption within Halema‘uma‘u, at Kīlauea's summit, began at approximately 3:20 p.m. on September 29, 2021. 

Color photograph of lava lake
A telephoto view of the lava lake within Halema‘uma‘u crater the morning on November 23, 2022, taken from the west rim and looking east. USGS photo by K. Mulliken.
Color photograph of lava lake
A telephoto view of the west vent area within Halema‘uma‘u crater, at the summit of Kīlauea. This photo was taken the morning of November 23, 2022, at a moment when red molten material was visible in the inlet north of the west vent, which feeds into the lava lake. Incandescent material is intermittently visible in the inlet. USGS photo by K. Mulliken.

November 23, 2022 — Kīlauea Summit Eruption Thermal Maps

Color map of lava lake temperature
A helicopter overflight on November 17, 2022, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The active lake surface is limited to the western 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.
Color map of lava lake temperature
A helicopter overflight on November 17, 2022, allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The active lake surface is limited to the western 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.