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Sibayak Volcano - John Seach
Sumatra, Indonesia
3.23 N, 98.52 E
summit elevation 2212 m
stratovolcano
Sibayak volcano is located 40 km SW of Medan in northern Sumatra. It is adjacent to the town of Berastagi.
A second peak called Mt Pinto forms a twin volcano. Sibayak has a 900 m wide crater which has deposits from Pinto on the northern rim. The western crater wall has a gap through which lava has flowed from a central plug.
Strong solfatara activity is found at the summit and hot springs on the southern slope.
Sibayak Volcano Eruptions
1881 - Explosive eruptions producing ash clouds.