recent eruptions

How Many Active Volcanoes Are In The Cascade Mountain Range?

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How Many Active Volcanoes Are In The Cascade Mountain Range? Cascade Range has nearly 3,000 once-active volcanoes, UO researchers find. Volcanic eruptions millions of years ago shaped the Central Oregon landscape. Massive peaks on the horizon remind residents of the geological past, from Mount Hood, Newberry Volcano and the Three Sisters. How many volcanoes are

What Causes Volcanoes In The Cascade Range?

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What Causes Volcanoes In The Cascade Range? The distribution of the Cascade Range and the volcanoes within it are the result of tectonic process occurring between the North American plate and the Juan de Fuca Plate. As the ocean crust slides under the continental crust, a portion of the continental crust gets pushed upwards, or