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Volcanoes in Indonesia

The geography of Indonesia is dominated by volcanoes that are formed due to subduction zones between the Eurasian plate and the Indo-Australian plate. Some of the volcanoes are notable for their eruptions, for instance, Krakatau for its global effects in 1883, Lake Toba for its supervolcanic eruption estimated to have occurred 74,000 Before Present which was responsible for six years of volcanic winter, and Mount Tambora for the most violent eruption in recorded history in 1815.


Pyroclastic cone
Information about pyroclastic cones

A pyroclastic cone composes of material ejected from a volcano. They are the most undaunted of volcanic structures. The material can range from finest particles. In comparison, cinder cones are more uniform. Pyroclastic cones are named from a combination of the Greek words for fire (pyro) and broken (klastos), which are made of pyroclastic material. They are usually found in or on larger features, such as stratovolcanoes, shield volcanoes and can be found inside calderas, however they can also be an independent feature. They can range from a few metres in height and are usually formed by a single eruption.

All text in this article is available under the terms of the GNU Free Documentation License
Last revised on November 11, 2009
    
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