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Mount St. Helens

en.wikipedia.org/wiki/Mount_St._Helens

Mount St. Helens or Louwala-Clough is an active stratovolcano located in Skamania County, ... Age of rock, < 40,000 yrs. Mountain type, Active stratovolcano.

Mount St. Helens - Facts and Figures

www.ngdc.noaa.gov/hazard/stratoguide/helenfact.html

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: ...

How Volcanoes Work - the Mt. St. Helens eruption

www.geology.sdsu.edu/how_volcanoes_work/Sthelens.html

The 1980 eruption of Mt. St. Helens is the most studied volcanic eruption of the .... underlying magma reservoir resulted in the waning of Plinian-type eruptions.

The Volcanoes of Lewis and Clark - Mount St. Helens - Summary

volcanoes.usgs.gov/observatories/cvo/Historical/LewisClark/Info/summary_mount_st_helens.shtml

Jan 5, 2016 ... Geologists call Mount St. Helens a composite volcano (or ... Although Hawaiian- type eruptions may destroy property, they rarely cause death or ...

Mount St. Helens | Volcano World | Oregon State University

volcano.oregonstate.edu/Mount_St_Helens

Prior to 1980, Mount St. Helens formed a conical, youthful volcano sometimes known as the Fuji-san of America. During the 1980 eruption the upper 400 m of ...

USGS: Volcano Hazards Program CVO Mount St. Helens

volcanoes.usgs.gov/volcanoes/st_helens/

Feb 12, 2013 ... USGS: Volcano Hazards Program - Cascades Volcano Observatory. ... Prior to 1980, Mount St. Helens had the shape of a conical, youthful volcano sometimes referred to as the Mount Fuji of ... Volcano type: Stratovolcano

Volcanoes - Weather Wiz Kids weather information for kids

www.weatherwizkids.com/weather-volcano.htm

An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows and ... Mt. Rainier and Mount St. Helens are examples of this type of volcano.

Mount St. Helens: Facts about deadliest U.S. volcanic event 35 ...

www.usatoday.com/story/news/nation-now/2015/05/15/mount-st-helens-eruption-35-anniversary/27170663/

May 15, 2015 ... Thirty five years ago, Mount St. Helens erupted in Washington, spewing ash, rock and hot gases into the air and causing mud to flow down the ...

Mount St. Helens Fast Facts - CNN.com

www.cnn.com/2013/07/26/us/mount-st-helens-fast-facts/

Jul 26, 2013 ... View the Mount. St. Helens Fast Facts on CNN and learn more about the volcano in the Cascade Mountains in Washington state.

Global Volcanism Program | St. Helens

volcano.si.edu/volcano.cfm?vn=321050

Country; Volcanic Region; Primary Volcano Type; Last Known Eruption ... CVO reported that on 14 February a M 4.3 earthquake near Mount St. Helens, felt ...

Answer
Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States.
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Mount St. Helens Eruption: Facts & Information - Live Science

www.livescience.com

Feb 28, 2013 ... Mount St. Helens erupted on May 18, 1980. The volcano, located in southwestern Washington, used to be a beautiful symmetrical cone about ...

Mt. St. Helens History - Mount St. Helens

www.mountsthelens.com

Mount St. Helens, other active Cascade volcanoes, and .... also began recording occasional spasms of volcanic tremor, a type of continuous, rhythmic ground

Why are Mount St. Helens' eruptions generally more explosive than ...

hvo.wr.usgs.gov

Mar 25, 2003 ... A weekly feature provided by scientists at the Hawaiian VolcanoObservatory. ... Eruption column at Mount St. Helens on May 18, 1980.