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In the last 8,000 years, the Hotlum Cone has erupted at least eight or nine times. About 200 years ago, the last significant Mount Shasta eruption came from this cone and created a pyroclastic flow, a hot lahar (mudflow), and three cold lahars, which streamed 7.5 mi (12.1 km) down Mount Shasta's east flank via Ash Creek. A separate hot lahar ...
The volcanoes with historical eruptions include: Mount Rainier, Glacier Peak, Mount Baker, Mount Hood, Lassen Peak, and Mount Shasta. Renewed volcanic activity in the Cascade Arc, such as the 1980 eruption of Mount St. Helens, has offered a great deal of evidence about the structure of the Cascade Arc. One effect of the 1980 eruption was a ...
Last eruption date Last eruption VEI ... Last eruption VEI Location Mount Baker: Stratovolcano: 3,286: ... Mount Shasta: Stratovolcano:
Mt. Shasta, California's largest volcano, had many eruptions in prehistoric times but has remained quiet in the modern era. ... California's last major destructive volcanic eruption came more than ...
Black Butte (formerly Wintoon Butte, Cone Mountain, Sugar Loaf and Muir's Peak [5]) is a cluster of overlapping dacite lava domes in a butte, [2] a satellite cone of Mount Shasta. [6] It is located directly adjacent to the northbound lanes of Interstate 5 at milepost 742 between the cities of Mount Shasta and Weed, California. The I-5 freeway ...
Shastina is a satellite cone of Mount Shasta. It is the second youngest of four overlapping volcanic cones which together form the most voluminous stratovolcano in the Cascade Range . At 12,335 feet (3,760 m), Shastina is taller than Mount Adams and would rank as the third highest volcano in the Cascades behind Mount Rainier and Shasta were it ...
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In total, about 400 eruptions were observed between 1914 and 1921, [69] which were the last eruptions in the Cascades before the 1980 eruption of Mount St. Helens, [75] which was the only other volcanic eruption in the contiguous United States during the 20th century. [76]