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Last eruption: 21 September 1865 to ... Mount Hood, also known as Wy'east, is an active stratovolcano in the Cascade Range and is a member of the Cascade Volcanic Arc.
On March 27, 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States.A series of phreatic blasts occurred from the summit and escalated until a major explosive eruption took place on May 18, 1980, at 8:32 am.
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 ...
Mount St. Helens, once the fifth-tallest peak in Washington State, lost about 1,300 feet from its height of 9,677, according to the USGS. The highest part of the crater rim on the southwestern ...
"The 1980 Mount St. Helens Eruption". Archived from the original on 14 July 2014. Mount St Helens (audio slideshow). Archived from the original on 14 July 2014. Volcanologist Sarah Henton discusses the Cascade Mountains and explains the geology and impact of the 1980 Mount St Helens eruption. (duration 6:29 min) Mount St. Helens (3D model).
From Indonesia’s volcanic islands to the Philippines, here are some of the most devastating eruptions in the last decade. ... 2021: Mount Semeru. On 4 December, 2021, Mount Semeru erupted on one ...
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Estimates place the volcano's last eruption at 46,000 years ago, in the Late Pleistocene. ... He describes "a number of high mountains" south of Mount Hood. [86]