Finding:
Freebase
searching
Factz
searching
Articles
searching

when did mount st. helens erupt?

Wikipedia Articles: results 1 - 10 of 213
help
  1. close
    Mount St Helens erupting at night by Paul Kane

    Mount St. Helens

    Mount St. Helens erupting at night. ... Roughly 700 years of dormancy were broken about 1480, when large amounts of pale gray dacite pumice and ash started to erupt, beginning the Kalama period.
  2. close
    Sthelens1

    1980 eruption of Mount St. Helens

    Mount St. Helens, May 17 1980. ... The volcano remains active, with smaller, dome-building eruptions continuing into 2007.
  3. close
    MSH80 st helens eruption plume 07-22-80

    Pacific Ring of Fire

    Eruption of Mount St. Helens on May 18 1980. ... Hoodoo Mountain is also considered active and could erupt in the future.
  4. close

    Cascade Volcanoes

    When Cascade volcanoes do erupt, pyroclastic flows, lava flows, and landslides can devastate areas 10 or more miles away; and huge mudflows of volcanic ash and debris, called lahars, can inundate valleys more than 50 miles (80 km) downstream. ... 1980 Eruption of Mount St. Helens
  5. close

    2004 and later volcanic activity of Mount St. Helens

    Mount St. Helens National Volcanic Monument website from the U.S. Forest Service
  6. close

    St. Helens (film)

    On May 18, he hikes to a ridgetop on the north face of Mount St. Helens to monitor some scientific equipment, then the mountain explodes.
  7. close

    Crater Glacier

    "Predictions of the growth and steady-state form of the Mount St. Helens Crater Glacier using a 2-D glacier model".
  8. close
    MSH80 eruption mount st helens 05-18-80

    Prediction of volcanic activity

    Mount St. Helens erupted explosively on May 18, 1980 at 8:32 a.m. PDT ... Seismic activity (earthquakes and tremors) always occurs as volcanoes awaken and prepare to erupt and are a very important link to eruptions.
  9. close
    MSH80 eruption mount st helens 05-18-80

    Geology of the Pacific Northwest

    Mount St. Helens erupts on May 18, 1980 ... This newly formed magma rises toward the Earth's surface to erupt, forming a chain of volcanoes (the Cascade Volcanic Arc) above the subduction zone.
  10. close

    Cascade Range

    Mount St. Helens, Washington: Eruption 2004 to Current.

Explore the following pages on Powerset:

parse:article:when\sdid\smount\sst.\shelens\serupt?
when did mount st. helens erupt?