Mt. Shasta last erupted in 1786: Mt. St. Helens last erupted in 2008 but big one was 1980

Mount Shasta

1786

Mount St. Helens

July 10, 2008

Medicine Lake Volcano

1080

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1786

Mount Shasta, Last eruption

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Mount Shasta - Wikipedia

https://en.wikipedia.org/wiki/Mount_Shasta

Volcanic status. During the last 10,000 years, Mount Shasta has erupted an average of every 800 years, but in the past 4,500 years the volcano has erupted an average of every 600 years. The last significanteruption on Mount Shasta may have occurred about two centuries ago.

Last eruption‎: ‎1786

Volcanic arc‎: ‎Cascade Volcanic Arc

Parent peak‎: ‎North Palisade

Age of rock‎: ‎About 593,000 years

‎Mount Shasta, California · ‎Mount Shasta Ski Park · ‎Fourteeners

USGS: Volcano Hazards Program CalVO Mount Shasta

https://volcanoes.usgs.gov/volcanoes/mount_shasta/hazard_summary.html

Nov 21, 2017 - The record of eruptions over the last 10,000 years suggests that, on average, at least oneeruption occurs every 800 to 600 years at Mt Shasta.

How often does Mount Shasta erupt? - USGS

https://www.usgs.gov/faqs/how-often-does-mount-shasta-erupt

Mount Shasta has erupted, on average, at least once per 800 years during the last 10,000 years, and about once per 600 years during the last 4,500 years. The last known eruption occurred about 200 years ago.