Our Northwest

Explosive Glacier Peak being mapped

Friday, September 26, 2014by  Jon Osterberg

Glacier Peak is perhaps the least-familiar Cascades volcano among Northwest residents. It’s also one of the most dangerous.
   That’s why the U.S. Geological Society is mapping Glacier Peak with LiDAR technology, aiming to learn more about past eruptions and prepare for future ones.
   Situated halfway between Snoqualmie Pass and Mt. Baker, Glacier Peak is less noticeable than other Cascade volcanoes because it’s so remote – a multi-day hike from any approach. Even many longtime residents aren’t familiar with the 10,541-foot peak.
   But scientists are well aware, classifying Glacier a “very high threat” volcano. Scientists believe Darrington, Burlington, and Sedro-Wooley are built atop lahars – catastrophic mudflows – that flowed during Glacier eruptions thousands of years ago. It erupts more violently and more often than other Cascade volcanoes, most recently around 1775. Read the Everett Herald article.

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