Global Volcanism Program | Image GVP-01033
An ash plume rises above Anak Krakatau on 4 January 1973. The eruption began in June 1972 and lasted until mid-1973. Frequent explosions from June to September 1972 were followed in December by renewed explosive activity and the effusion of a lava flow, which ceased flowing in January 1973.
Photo by S. Wikartadipura, 1973 (Volcanological Survey of Indonesia).