Mount St Helens. Giant volcanic ash cloud formed by the eruption of Mount St Helens,Washington State,USA,on 22nd July 1980. This explosive event threw ash up to an altitude of 18km in the space of eight minutes. This eruption occurred about two months after the major eruption of 18th May 1980,when some 3 cubic kilometres of the volcano were blown away. A lateral blast of dense,debris-filled steam clouds burst away from the volcano at speeds of up to 400 kilometres per hour,devastating more than 500 square kilometres of land. 57 people died in the first eruption,and over $1 billion of damage was done,mainly to the local lumber industry | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Weintraub, David |
Taille de l’image : | 2236 px × 3428 px |
Model Release : | Non requis |
Property Release : | Non requis |
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