About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 78. Chapters: Mount St. Helens, Mount Baker, Mount Shasta, Crater Lake, 1980 eruption of Mount St. Helens, Mount Rainier, Mount Adams, Mount Thielsen, Glacier Peak, List of Cascade volcanoes, Lassen Peak, Newberry Volcano, Cinder Cone and the Fantastic Lava Beds, Mount Mazama, Cascadia subduction zone, Mount Tabor, Three Sisters, Mount Tehama, 2004-2008 volcanic activity of Mount St. Helens, Yamsay Mountain, Mount Jefferson, Medicine Lake Volcano, Mount Bachelor, Mount Bailey, Mount Scott, Lava Butte, Boring Lava Field, Mount McLoughlin, Goat Rocks, Wizard Island, Diamond Peak, Black Butte, Hogg Rock, Schonchin Butte, Silver Star Mountain, Shastina, Broken Top, Indian Heaven, Belknap Crater, Three Fingered Jack, Olallie Butte, Rocky Butte, Cinnamon Butte, Pelican Butte, Davis Lake volcanic field, Aspen Butte, Pilot Butte, Marble Mountain-Trout Creek Hill, Maiden Peak, Chaos Crags, Black Crater, Mount Washington, Union Peak, Larch Mountain, Howlock Mountain, Coquihalla Mountain, Battle Ground Lake State Park, Tumalo Mountain, Powell Butte, Hayrick Butte, Battle Ax Mountain, Mount Sylvania, Hoodoo Butte, Brushy Butte, Pemberton Volcanic Belt, Jim Kelly Peak, Black Buttes, West Crater, Big Cave, Blue Lake Crater, Twin Buttes, Lone Butte. Excerpt: The 1980 eruption of Mount St. Helens, a stratovolcano located in Washington state, in the United States, was a major volcanic eruption. The eruption (which was a VEI 5 event) was the only significant one to occur in the contiguous 48 U.S. states since the 1915 eruption of Lassen Peak in California. The eruption was preceded by a two-month series of earthquakes and steam-venting episodes, caused by an injection of magma at shallow depth below the volcano that created a huge bulge and a fracture system on Mount St. Helens' north slope. USGS scientists convinced the authorities to close Moun...
