• arclein
Mount Rainier and Mount St. Helens are two of scores of snow-capped volcanoes that march up the West Coast, from Northern California to British Columbia, Canada. If Mount Rainier erupts, its glaciers could melt and trigger lethal mudflows called lahars that would race through the Seattle-Tacoma metropolitan area. Similar lahars scoured the landscape when Mount St. Helens erupted in 1980.
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