Global Volcanism Program | Image GVP-03461
A cascade of lava flows down the walls of Alae crater on 5 August 1969. During the course of the 1969-74 Mauna Ulu eruption lava entirely filled both Alae and nearby Aloi craters. Lava flows from this eruption traveled 12 km to the sea.
Photo by Jeffrey Judd, 1969 (U.S. Geological Survey).