Q: What caused the Cascade Range volcanoes? A: The motion of the tectonics plates creates the volcanoes. When the descending oceanic plate reaches fifty miles below the surface, the rock melts into magma. The magma rises to the surface forming volcanoes. | EarthScope Consortium
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25 million years ago, an ancient volcano in the Cascades blew up, sending a pyroclastic flow across what is now Cash Prairie. That flow distributed the remains of that volcano across the landscape - and now, you can find those remains as volcanic tuff littering the area. | Cascade PBS
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25 million years ago, an ancient volcano in the Cascades blew up, …
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These mountains look peaceful — but they’re anything but quiet. ⛰️🌋 The Cascade Range stretches from Canada to Northern California, forming the backbone of the Pacific Northwest. Beneath its snow-covered peaks lies a chain of active volcanoes, including Mount Rainier, Mount Hood, and Mount St. Helens. This range creates rivers, feeds forests, controls weather, and supplies water to millions. At the same time, it sits on powerful tectonic forces capable of eruptions, earthquakes, and massive lan
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This week, all volcanoes in the Cascade Range of Washington and Oregon are at normal background levels of activity. Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN Weekly Update: https://www.usgs.gov/programs/VHP/volcano-updates#cvo Past Week Observations: Small magnitude earthquakes were detected at Mount Baker, Mount Rainier, Mount St. Helens, and Newberry. All monitoring data are consistent with background activity levels in the Cascades Range. Field crews were at Mount
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All volcanoes in the Cascade Range of Oregon and Washington are at normal background activity levels. Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN During the past week, small earthquakes were detected at Mount Rainier, Mount St. Helens, and Mount Hood. Field crews were at Mount St. Helens and Mount Rainier to finish installation of new monitoring stations. Last week, CVO staff installed five new stations along the White River, north of Mount Rainier in Washington state.
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This week, all volcanoes in the Cascade Range of Washington and Oregon are at normal background levels of activity. Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN https://ow.ly/ZMx450W9lgf Past Week Observations: Small earthquakes were located at Mount Baker, Mount Rainier, Mount St. Helens, and Mount Hood. Field crews worked at Mount St. Helens to update and maintain monitoring equipment. Part of the work that was completed at Mount St. Helens was to upgrade the telemetr
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