Global Volcanism Program | Image GVP-03912
Following mild eruptions that began on 7 February 1966, a powerful eruption in April produced this ash plume that towers above the summit (not visible in this view). Major eruptions during 20 April to 1 May were accompanied by pyroclastic flows and lava flows.
Photo by Bill Rose, 1966 (Michigan Technological University).
This image is made available under the Creative Commons BY-NC 4.0 license terms.