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December 3, 2022 — Mauna Loa Eruption Map

December 3, 2022
Color map of volcanic eruption
The Northeast Rift Zone eruption of Mauna Loa has continued into its sixth full day. One active fissure, fissure 3, is feeding a lava flow downslope to the north. Webcam and satellite views overnight allowed USGS analysts to accurately map some of the most active flows, displayed in red here, along with older flows further uprift, in part of Mokuʻāweoweo Caldera, and in the upper summit region southwest of the caldera. Elsewhere the progression of the flows is marked by points for the flow fronts, mapped by HVO field crews.