Ash/Tephra Fall
Ash/Tephra Fall
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Geology and History Summary for Mount Hood
Mount Hood is Oregon's highest peak and an active volcano of the Cascade Range.
Eruption History of Mount Hood, Oregon
Mount Hood, which has been active for at least 500,000 years, occupies a long-lived focus of volcanic activity that has produced ancestral Hood-like volcanoes for the past 1.5 million years.
Ash and Tephra Fall Hazards at Mount Hood
Mount Hood has typically not produced thick, extensive deposits of tephra, but relatively modest amounts of tephra were produced during past lava-flow and lava-dome eruptions.