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FAQs

How often does Mount Shasta erupt?

USGS scientists are currently working on this question. Mount Shasta doesn’t erupt on a regular timescale. Research indicates that the volcano erupts episodically with ten or more eruptions occurring in short (500-2,000 year) time periods separated by long intervals (3,000-5,000 years) with few or no eruptions.Evidence suggests that magma most recently erupted at the surface about 3,200 years ago...

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How often does Mount Shasta erupt?

USGS scientists are currently working on this question. Mount Shasta doesn’t erupt on a regular timescale. Research indicates that the volcano erupts episodically with ten or more eruptions occurring in short (500-2,000 year) time periods separated by long intervals (3,000-5,000 years) with few or no eruptions.Evidence suggests that magma most recently erupted at the surface about 3,200 years ago...

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