The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Karangetang (Api Siau) volcano is one of Indonesia's most active volcanoes. Located on the remote Api Siau Island north of N Sulawesi, it is notorious for building lava domes and producing dangerous pyroclastic flows.
Stratovolcano 1784 m (5,853 ft) Siau Island, Sangihe Islands, Indonesia, 2.78°N / 125.48°E Current status: minor activity or eruption warning (3 out of 5) Karangetang webcams / live data Karangetang volcano books | Tours Karangetang volcano eruptions: 1675, 1712, 1825, 1864, 1883, 1886, 1887, 1892, 1899, 1900, 1905, 1921, 1922, 1924, 1926, 1930, 1930, 1935, 1940, 1940, 1941, 1947, 1947, 1948, 1949, 1952, 1953, 1961, 1961, 1962-62, 1965-67, 1967, 1970-71, 1972-76, 1976-77, 1978, 1979, 1980, 1982, 1983-88, 1989, 1991-93, 1995, 1996-97, 1998, 1999-2003, 2004-2005. 2008-9, 2010, 2011, 2012, 2013, 2014, 2015 Typical eruption style: Explosive. Formation of lava domes and pyroclastic flows. Last earthquakes nearby
PVMBG reported that during 27 Janaury-3 February the lava dome was incandescent at night. Variable amounts of white and blue emissions rose as high as 100 m above Main Crater. ...more
RSAM values doubled in January due to an increase in the number of shallow volcanic earthquakes. The Alert Level remained at 3 (on a scale of 1-4); visitors and residents were warned not to approach Karangetang within a 4-km radius. (Smithsonian / USGS Weekly Volcanic Activity Report 3-9 February 2016) [less]
Seismic activity at Karangetang since Jan 2015 (VSI)
Ash from the volcano has been observed on satellite imagery during 11-12 Jan, Darwin VAAC reported. Likely, this came from a larger rockfall triggering a small pyroclastic flow, but this needs to be confirmed. The latest VSI report from this morning only mentions continuing glow from the active summit lava dome and small to moderate rockfalls. ...more
In case of heavy rains, larger rockfalls and lahars could occur, in particular towards the valleys radiating to the SE from the volcano. Seismic activity remains elevated with an increase in shallow volcanic quakes. [less]
Merapi volcano photos: One of the most active and most dangerous volcanoes of Indonesia: Merapi meaning "the one who makes fire", is a feared but also venerated holy mountain looming over the city of Yogyakarta, capital of Central Java.
Igneous or magmatic rocks: The most primitive rock type forms when magma (molten rock) solidifies - either inside the earth (plutonic rocks) or during volcanic eruptions (volcanic rocks). A short overview.
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