Agung volcano towers over the eastern end of the island of Bali. A steep-walled, 200-m-deep crater is located at the summit of the 3142-m-high volcano, seen here from the Sakta River on the eastern flank. Only three eruptions have been recorded in historical time from Gunung Agung; the latest, during 1963-64, produced devastating pyroclastic flows and lahars.
Photo by Tom Pierson, 1989 (U.S. Geological Survey).