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  2. 1980 eruption of Mount St. Helens - Wikipedia

    en.wikipedia.org/wiki/1980_eruption_of_Mount_St...

    The short film Eruption of Mount St. Helens, 1980 (1981) is available for free viewing and download at the Internet Archive. The short film This place in time: The Mount St. Helens story (1984) is available for free viewing and download at the Internet Archive. Aerial pictures of the July 22nd, 1980 secondary eruption

  3. Mount St. Helens - Wikipedia

    en.wikipedia.org/wiki/Mount_St._Helens

    Topo map: USGS Mount St. Helens: Geology; Rock age: Less than 40,000 years old: ... Prior to the 1980 eruption, Mount St. Helens was the fifth-highest peak in Washington.

  4. Prediction of volcanic activity - Wikipedia

    en.wikipedia.org/wiki/Prediction_of_volcanic...

    The deformation of Mount St. Helens prior to the May 18, 1980 eruption was a classic example of deformation, as the north side of the volcano was bulging upwards as magma was building up underneath. Most cases of ground deformation are usually detectable only by sophisticated equipment used by scientists, but they can still predict future ...

  5. Study estimates when Yellowstone National Park's giant ... - AOL

    www.aol.com/study-estimates-yellowstone-national...

    To compare, Mt. St. Helens' eruption in 1980 was a level 4. Known as a super eruption for its magnitude, the event emptied out enough volcanic material to produce the 30-by-40-mile-wide caldera.

  6. Could a WA volcano erupt again in our lifetime? What would ...

    www.aol.com/could-wa-volcano-erupt-again...

    The eruption finally occurred on May 18, when a magnitude 5.1 earthquake caused the north flank of Mount St. Helens to collapse, causing one of the largest landslides in U.S. history.

  7. Coldwater Lake (Washington) - Wikipedia

    en.wikipedia.org/wiki/Coldwater_Lake_(Washington)

    Map showing lakes and other features in the Mount St. Helens area affected by the eruption. West is up. In early 1981, the U.S. Army Corps of Engineers excavated a spillway and outlet channel for the lake, stabilizing it at 2,503 feet (763 m) above sea level with a volume of 67,300 acre-feet (83,000,000 m 3 ). [ 3 ]

  8. Last moments before Mount St. Helens eruption caught on ... - AOL

    www.aol.com/weather/last-moments-mount-st-helens...

    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 ...

  9. Barry Voight - Wikipedia

    en.wikipedia.org/wiki/Barry_Voight

    His predictions came true when St. Helens erupted in May 1980; Voight was then hired by the USGS to investigate the debris avalanche that initiated the eruption. After his work at Mount St. Helens brought him international recognition, Voight continued researching and guiding monitoring efforts at several active volcanoes throughout his career ...