BackgroundKarangetang (or Api Siau) volcano lies at the northern end of the island of Siau, north of Sulawesi. The 1784-m-high stratovolcano contains five summit craters along a N-S line. Karangetang is one of Indonesia's most active volcanoes, with more than 40 eruptions recorded since 1675 and many additional small eruptions that were not documented.
Twentieth-century eruptions have included frequent explosive activity sometimes accompanied by pyroclastic flows and lahars. Lava dome growth has occurred in the summit craters; collapse of lava flow fronts has also produced pyroclastic flows.
5 eruptions in the 20th century (1940, 1972, 1976, 1983 and 1991) caused fatalities.
Source: GVP, Smithsonian Institution
Karangetang volcano tours:Volcanoes and Spices (17-day volcano trekking tour to the Molucca Sea: N-Sulawesi, Karangetang and Halmahera)
See also: Sentinel hub | Landsat 8 | NASA FIRMS