Global Volcanism Program | Image GVP-04502
Gunung Sibayak, seen here from the S, is the southernmost of two volcanoes constructed within the Singkut caldera. Several villages occupy the flat-bottomed caldera floor. Plumes rise from fumaroles on the flank of a lava dome in the summit crater.
Anonymous, 1990.
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Keywords: fumarole
Singkut