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December 21, 2021

A new eruption at Kīlauea's summit began at approximately 3:20 p.m. HST on September 29, 2021. Lava activity is currently confined within Halema‘uma‘u crater, in the closed area of Hawai‘i Volcanoes National Park. 

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.

Color photo of a volcanic vent erupting and supplying lava into an active lava lake
A small amount of lava spatter was thrown from the west vent in Halema‘uma‘u crater, at Kīlauea summit, on December 20, 2021. Lava continued to flow into the lake from a source north (left) of the main vent cone. Multiple sources of degassing can be seen on and around the vent cone. USGS photo by B. Carr.
Telephoto image of a lava lake overflowing it's levee during a period of high effusion
A small amount of lava spatter was thrown from the west vent in Halema‘uma‘u crater, at Kīlauea summit, on December 20, 2021. Lava continued to flow into the lake from a source north (left) of the main vent cone. Multiple sources of degassing can be seen on and around the vent cone. USGS photo by B. Carr.