This Is A Pyroclastic Flow
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Uploaded by MusicBasterd on Jul 11, 2009
This is a pyroclastic flow and how it forms. A pyroclastic flow is a giant avalanche of volcanic ashes and gas that sometimes will sprout from an eruption column when the upward thrust is destabilized [in the Montserrat case],
from the side of a volcanic mountain that has recently collapsed [in the Mount Saint Helens case]
or sometimes directly from the magma chamber itself [in the Krakatoa case]
This horizontal avalanche consists of sulphur dioxide, carbon dioxide, carbon monoxide, volcanic ash and lava boulders. It moves at up to 700 kilometers per hour, has a temperature of ~1000 degrees Celsius, and can travel up to 200 km from it's source. If it hits a large mass of water, it will not die down, but turn into a pyroclastic surge. Pyroclastic surges are similar to flows, but are less dense and usually always travel at the speed maximum. They usually only travel ten kilometers from their source, but when they hit water they create a pocket of steam underneath which maintains momentum, making it
self-propelling. The Krakatoa pyroclastic surge travelled 80 kilometers until it dissipated.
The fantastic song featured; Omen, by The Prodigy.
Footage from Montserrat [the parts that are clearly real] from dsc.discovery.com. Special FX footage of Mount Saint Helens [ the parts that are obviously fake ] from Seismic Seconds.
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All Comments (126)
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sick vid man!!
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Fucken cool vid bro
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I hate when people say 911 was a pyroclastic flow. :( Thanks for posting ;)
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@XxFatalSNiPEzZ A pyroclastice flow cannot be a homo as it is a nonliving thing and can kill you whenever it wants to. As long as you are suspiciously dumb enough to walk right in its path.
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@maraseea 600 degree heat dude yah u would like totaly die lol
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music is gay
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it's an omen!!!!
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Mt. St. Helens!!!
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@XxFatalSNiPEzZ And at what point did he say the video was 100% real? Read the description dude.
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awesome
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YEP THATS CUBE RAPPING
Battlesteel1 1 year ago 7
Interesting to say the least. Volcanoes have been an interest of mine for quite awhile so I actually enjoyed this video. I think that some scenes in this video was Mt. St. Helens erupting.
MrMrEllison 1 year ago