How the Earth Was Made S02E10 - Mt. St. Helens

How the Earth Was Made

Sinopse

Over 20 years ago, Mt. St Helens--thought to be dormant--shocked America when it exploded. It is an acidic volcano--the magma beneath is full of volatiles making it highly explosive. A new plug has formed in its throat and is rising. When it blows it will be like uncorking a champagne bottle, releasing pressure below and allowing dissolved gases to escape and explode. The question is...when will it blow again?

Informações

  • Status: Transmitido
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  • Data de Exibição: 02/02/2010
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  • Duração do Episódio: 60 minutos
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  • Emissora: US History

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