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The Cascade volcanoes have had more than 100 eruptions over the past few thousand years, many of them explosive eruptions. [21] However, certain Cascade volcanoes can be dormant for hundreds or thousands of years between eruptions, and therefore the great risk caused by volcanic activity in the regions is not always readily apparent.
This is a list of Cascade volcanoes, i.e. volcanoes formed as a result of subduction along the Cascadia subduction zone in the Pacific Northwest of North America. The volcanoes are listed from north to south, by province or state: British Columbia , Washington , Oregon , and California .
Mount McLoughlin is a dormant steep-sided stratovolcano, or composite volcano, in the Cascade Range of southern Oregon and within the United States Sky Lakes Wilderness.It is one of the volcanic peaks in the Cascade Volcanic Arc, within the High Cascades sector.
Mount Bachelor, formerly named Bachelor Butte, is a dormant stratovolcano atop a shield volcano in the Cascade Volcanic Arc and the Cascade Range of central Oregon, United States. Named Mount Bachelor because it stands apart from the nearby Three Sisters , [ 4 ] it lies in the eastern segment of the central portion of the High Cascades, the ...
Mount Shasta (/ ˈ ʃ æ s t ə / SHASS-tə; Shasta: Waka-nunee-Tuki-wuki; [5] Karuk: Úytaahkoo) [6] is a potentially active [7] stratovolcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of 14,179 ft (4,322 m), it is the second-highest peak in the Cascades and the fifth-highest in the state.
Mount Mazama (Klamath: Tum-sum-ne [5]) is a complex volcano in the western U.S. state of Oregon, in a segment of the Cascade Volcanic Arc and Cascade Range.The volcano is in Klamath County, in the southern Cascades, 60 miles (97 km) north of the Oregon–California border.
The Cascade Range or Cascades is a major ... Geologists were also concerned that the St. Helens eruption was a sign that long-dormant Cascade volcanoes might become ...
They are the remnants of a volcano that has been dormant [9] for about 1.4 million years. [10] Some geological references suggest that the volcano represents the southernmost boundary of the Cascade Volcanoes, but there are significant differences in age and form compared to the other volcanoes in that range. [11]