English: When Hawaii’s massive Mauna Loa volcano began erupting for the first time in nearly four decades late on November 27, 2022, lava initially spilled from the Moku’āweoweo crater at the mountain’s summit. But by the next morning, activity had migrated to a cluster of four fissures northeast of the summit. One of these—fissure 3—quickly became dominant, producing a long lava flow that spanned more than 10 kilometers (6 miles) after just a few days.