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December 2, 2022 — View of where the 2022 Mauna Loa lava flow crossed the Mauna Loa observatory road

Detailed Description

The 2022 Mauna Loa lava flow crossed the road leading to the Mauna Loa Observatory within the first 24 hours of the start of the eruption. On December 2, USGS monitoring field crews visited the eastern margin where the lava flow covered the road. The plume from fissure 3 is visible in the background. USGS photo by N. Deligne.


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