List of Cascade volcanoes
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.
British Columbia
Washington
Name | Type | Elevation (m) |
Elevation (ft) |
Last eruption date | Last eruption VEI | Location |
---|---|---|---|---|---|---|
Mount Baker | Stratovolcano | 3,286 | 10,781 | 1880 | 2 | 48.777°N 121.813°W |
Schriebers Meadow Cone | Stratovolcano | 1,110 | 3,640 | 9,800 BP | 48.699°N 121.817°W | |
Glacier Peak | Stratovolcano | 3,213 | 10,541 | 1700 ± 100 years | 2 | 48.112°N 121.113°W |
White Chuck Cinder Cone | Cinder cone | 1,835 | 6,020 | Unknown | 48.053°N 121.167°W | |
Dishpan Gap | Cinder cone | 1,707 | 5,600 | Unknown | 47.977°N 121.149°W | |
Mount Rainier | Stratovolcano | 4,392 | 14,411 | 1894 | 1? | 46.853°N 121.760°W |
Goat Rocks | Stratovolcano | 2,494 | 8,184 | 730,000 BP | 46.29°N 121.24°W | |
Mount Adams | Stratovolcano | 3,742 | 12,277 | 950 | 2 | 46.206°N 121.490°W |
Mount St. Helens | Stratovolcano | 2,549 | 8,363 | 2008 | 2 | 46.20°N 122.18°W |
Indian Heaven | Shield volcano | 1,806 | 5,925 | 8260 BP ± 100 years | 45.93°N 121.82°W | |
Tumtum Mountain | Lava dome | 611 | 2,004 | 70,000 BP | 45.93°N 122.34°W | |
West Crater | Volcanic field | 1,329 | 4,360 | 7767 BP | 2? | 45.88°N 122.08°W |
Trout Creek Hill | Shield volcano | 893 | 2,930 | 340,000 BP | 45.83°N 122.00°W | |
Silver Star Mountain | Shield volcano? | 1,330 | 4,364 | Miocene | 45.75°N 122.24°W |
Oregon
California
Name | Type | Elevation (m) |
Elevation (ft) |
Last eruption date | Last eruption VEI | Location |
---|---|---|---|---|---|---|
Medicine Lake Volcano | Shield volcano | 2,412 | 7,913 | 1260 ± 40 years | 3? | 41.363°N 121.33°W |
Rainbow Mountain | Stratovolcano | 2,322 | 7,619 | - | 41.474°N 121.956°W | |
Mount Shasta | Stratovolcano | 4,317 | 14,163 | 1786 | 3 | 41.409°N 122.193°W |
Shastina | Stratovolcano | 3,758 | 12,330 | - | 41.40°N 122.22°W | |
Black Butte | Lava dome | 1,902 | 6,242 | 9,000-10,000 BP | 41.363°N 122.348°W | |
Brushy Butte | Shield volcano | 1,174 | 3,852 | Unknown | 41.178°N 121.443°W | |
Big Cave | Shield volcano | 1,259 | 4,131 | Unknown | 40.955°N 121.365°W | |
Twin Buttes | Cinder cones | 1,631 | 5,351 | Unknown | 40.777°N 121.591°W | |
Tumble Buttes | Cinder cones | 2,191 | 7,188 | Unknown | 40.68°N 121.55°W | |
Eagle Lake Field | Fissure vents | 1,652 | 5,420 | Unknown | 40.63°N 120.83°W | |
Cinder Cone | Cinder cone | 2,105 | 6,907 | 350 BP | 40.53°N 121.32°W | |
Chaos Crags | Lava domes | 2,592 | 8,503 | 1,000 BP | 40.53°N 121.52°W | |
Lassen Peak | Lava dome | 3,189 | 10,462 | 1917 | 3 | 40.492°N 121.508°W |
Mount Tehama | Stratovolcano | 2,815 | 9,235 | 600,000 BP | 40.43°N 121.55°W |
See also
Notes
- The relationship of the Silverthrone complex with other volcanoes in the Cascade Volcanic Arc is not clear and remains uncertain.[1] However, it is still considered to be a member of the Garibaldi Volcanic Belt, the Canadian portion of the Cascade Volcanic Arc formed by subduction of the Juan de Fuca Plate.[1][2]
- Like Silverthrone, the relationship of the Franklin Glacier Complex with other volcanoes in the Cascade Volcanic Arc is not clear and remains uncertain.[3] But it is still considered to be a member of the Garibaldi Volcanic Belt, the Canadian portion of the Cascade Volcanic Arc formed by subduction of the Juan de Fuca Plate.[2][3]
References
- "Silverthrone Caldera". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-03-10. Archived from the original on 2010-12-12. Retrieved 2010-02-26.
- "Garibaldi volcanic belt". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-04-02. Archived from the original on 2011-05-06. Retrieved 2010-02-26.
- "Franklin Glacier". Catalogue of Canadian volcanoes. Geological Survey of Canada. 2009-03-10. Archived from the original on 2010-12-11. Retrieved 2010-02-26.
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