This Mauna Loa's summit shows the cinder-cone and lava flows that w...

This aerial view of Mauna Loa's summit shows the cinder-cone and lava flows that were erupted in 1949. The crack extending down the left side of the cone is the northeast-southwest trending 1984 fissure that bisected the southwest flank of the cone during the initial phase of the eruption. Light-brown tephra erupted from the 1949 cone thins to the west. The steep caldera walls north (right) of the cone are 70 m (230 feet) high.