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The top documents tagged [lahars volcanic mudflows]
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lahars volcanic mudflows
Mt St Helens
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Tectonics: Volcanic hazards
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Vesuvius - Emergency Planning
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Mount St. Helens April 10, 1980. On March 20, 1980, after a quiet period of 123 years, earthquake activity once again began under Mt. St. Helens. March.
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Common types of magma eruptions Shield volcano Volcanic dome Cinder cones Composite volcano Caldera Fissure Flood basalt.
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