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December 6, 2022 — Mauna Loa Eruption Map

December 6, 2022
Color map of eruption
Sources/Usage: Public Domain. View Media Details
The Northeast Rift Zone eruption of Mauna Loa that began the evening of November 27, 2022, continues as of December 6, 2022 (ninth full day). One active fissure, fissure 3, is feeding a lava flow downslope to the north. HVO field crews and USGS analysts have accurately mapped 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. Lava flow length was measured by tracing the continuous active channel shown in yellow here and then extending the measurement to the distal lava flow extent measured in satellite data. The increase in area covered by lava flows over the past 24 hours reflects better resolution mapping rather than actual flow expansion. Lava flow expansion over the past 24 hours is shown in red and amounts to 0.14 square miles (90 acres).  
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