December 1, 2022 — Mauna Loa lava channel flowing downhill
View of of the lava channel that exits from Fissure 3 and is flowing downhill from the Northeast Rift Zone of Mauna Loa. Once a channel forms, the lava can stay insulated and more fluid as it flows. This can allow for lava to move fast in steep parts of its channel and create rapids. USGS image by D. Downs.