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4360 clicks; posted to Video » on 04 Feb 2014 at 10:37 PM (3 years ago) | | share: more»
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Pyroclastic Flow followed by series of Tornados, Sinabung Volcano
The pyroclastic flow deposits red-hot material on the slope of the volcano. After a few minutes, air heated by the deposit establishes a convective regime and due to the speed of the rising air a series of small tornados (also spelled tornadoes) are formed.
During daylight it is difficult to imaging how hot the deposit is. To see a pyroclastic flow deposit glowing at night from same location as present video one can view:
Note: Video is played at 2x normal speed as flow is actually not very fast and video would otherwise be too long for most viewers.
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