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Jun 21, 2024 · Mount Saint Helens, volcanic peak in the Cascade Range, southwestern Washington, U.S. Its eruption on May 18, 1980, was one of the greatest volcanic explosions ever recorded in North America. Watch the volcanic eruption of Mount Saint Helens and subsequent flooding caused by melted glaciers.
Mount St. Helens (known as Lawetlat'la to the indigenous Cowlitz people, and Loowit or Louwala-Clough to the Klickitat) is an active stratovolcano located in Skamania County, Washington, [1] in the Pacific Northwest region of the United States. It lies 52 miles (83 km) northeast of Portland, Oregon, [2] and 98 miles (158 km) south of Seattle. [3] .
Mar 9, 2018 · Mount St. Helens is a volcano located in southwestern Washington state. It’s the most active volcano in the Cascade Range, a mountain range that extends from British Columbia through Washington...
Jul 8, 2021 · Mount St. Helens is located in the Pacific Northwest region, specifically Skamania County in Washington, US. It is approximately 83 kilometers from Oregon and 158 kilometers from Seattle. Mount Adams, another Cascade volcano, is located 55 kilometers to St. Helens’ east.
Mount St. Helens is primarily an explosive dacite volcano with a complex magmatic system. The volcano was formed during four eruptive stages beginning about 275,000 years ago and has been the most active volcano in the Cascade Range during the Holocene.
Facts | Story | Feature | Questions. Location: State of Washington, USA. Latitude and Longitude: 46.2º N, 122.2º W, Elevation: 2,549 m (8,363 ft) Volcano Type: Stratovolcano. Earliest Eruption: 10,000 BP. Oldest Historic Eruption: 1831. Most Recent Eruption: 2008. Number of Eruptions in 20th Century: 5.
Dec 3, 2019 · Mount St. Helens is an active volcano located in the United States' Pacific Northwest region. It is positioned about 96 miles (154 km) south of Seattle, Washington and 50 miles (80 km) northeast of Portland, Oregon.
