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Topic: Mount St Helens


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 Mount St. Helens - Wikipedia, the free encyclopedia
Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of North America.
Mount St. Helens had major activity again on March 8, 2005 when a 36,000-foot plume of steam and ash emerged, which was visible from Seattle, Washington and rained ash on Yakima, Washington.
Mount St. Helens is 34 miles (55 km) almost due west of Mount Adams, which is in the eastern part of the Cascade Range.
en.wikipedia.org /wiki/Mt_St_Helens   (4280 words)

  
 CVO Photo Archives - Mount St. Helens Eruption Images - 2006
Mount St. Helens' crater and new dome from the south crater rim.
Mount St. Helens' new dome with slab, as seen from the south.
Mount St. Helens new growth on dome, with slab/spine, as seen from the Johnston Ridge Observatory Visitor Center (JRO).
vulcan.wr.usgs.gov /Volcanoes/MSH/Images/MSH04   (1319 words)

  
 Mt. St. Helens During
Helens is erupting and therefore our flight plan calls for us to stay just south of the Columbia River and maintain a low altitude until we are certain that we are away from the cloud of ash." The pilot continued to describe the eruption of Mt. St.
Somewhere in the vicinity of Mount Hood, OR our plane crossed over the Columbia River and proceeded in a westerly direction on the Washington side of the River.
Helens is on an ocean-continent subduction boundary (the Juan de Fuca plate is subducting under the N. American plate).
www.olywa.net /radu/valerie/mshduring.html   (2667 words)

  
 Mount St. Helens
Mount St. Helens (MSH) is a volcano in Skamania County, Washington state, in the Pacific Northwest region of the United States.
Mount St. Helens was named by George Vancouver after Alleyne Fitzherbert, Baron St. Helens.
Before the eruption, the summit of Mount St. Helens was 9,677 feet (2,950 meters).
usapedia.com /m/mount-st-helens.html   (413 words)

  
 Narrative of Mount Saint Helens
Mount St. Helens was even intermittently active between 1832 and 1857, during the early stages of settlement of the area by Easterners.
To the experienced observer, the conical shape and composition of rocks on the mountain boldly proclaimed Mount St. Helens' true nature--it was a volcano.
One of the Indian names for Mount St. Helens was "fire mountain," and local Indians were reluctant to approach the mountain despite the abundant game in the area.
www.cotf.edu /ete/modules/volcanoes/vnarrative1.html   (497 words)

  
 Unpredictable Mount St. Helens - GreatOutdoors.com
A national preserve was established--the Mount St. Helens National Volcanic Monument-- and elaborate new visitors centers build at the entrance, and on Coldwater Ridge, at 2,500 feet, deep in the blast zone.
In the decades prior to the spring of 1980, Mount St. Helens was perhaps the most obscure of the Cascade volcanoes.
Only minor eruptive activity has taken place at St. Helens in the intervening 6 months, although the mountain remains sufficiently unpredictable that the USGS will not allow the reopening of the Johnston Observatory.
www.greatoutdoors.com /published/general/news/unpredictablemountsthelens   (1382 words)

  
 FEMA For Kids: Mount St. Helens
Mount St. Helens began to spew forth ash and steam.
Mount St. Helens information courtesy of U.S. Geological Survey/Department of the Interior.
St. Helens is located in southwestern Washington State, about 50 miles northeast of Portland, Oregon.
www.fema.gov /kids/volhelen.htm   (402 words)

  
 Road Guide to Mt St. Helens National Park
Nearer to Mount St. Helens the trees were blown down pointing away from the crater, but at this distance gravity and topography began to deflect the heavier-than-air mixture of hot gas and rock fragments.
Mount St. Helens, the source of the blast, still 13 miles to the south, is out of sight beyond the ridges ahead.
The eruption of Mount St. Helens was a sudden, drastic revolution that profoundly changed the volcano and its surroundings.
www.dartmouth.edu /~volcano/texts/DekMtStHelen.html   (11375 words)

  
 Mount St. Helens National Volcanic Monument
Mount St. Helens Institute - a private, not-for-profit organization dedicated to improving stewardship and appreciation of the dynamic natural environment surrounding the volcano.
Mount St. Helens Teacher's Corner - The Teacher's Corner is for teachers, educators and students planning field trips to Mount St. Helens.
Mount St. Helens Volcano Review - The Volcano Review is published annually during the summer and distributed throughout the Monument and surrounding local communities for folks visiting Mount St. Helens.
www.fs.fed.us /gpnf/mshnvm   (1001 words)

  
 BBC NEWS Americas Concern over rumbling US volcano
The present dome on Mount St Helens formed between 1980 and 1986 and sits in the crater which was formed by the massive eruption in 1980.
Earthquakes associated with Mount St Helens started occurring more frequently than normal on 23 September and yesterday were reported to be occurring at a rate of three to four a minute - almost double the previous day's count.
US scientists fear a surge in activity at the Mount St Helens volcano in Washington State might be a sign it is on the verge of erupting.
news.bbc.co.uk /2/hi/americas/3704148.stm   (635 words)

  
 Mount St. Helens' Quiet Eruption - New York Times
Mount St. Helens, its second dome visible, is being shaken constantly by earthquakes.
Many of the scientists now observing Mount St. Helens were there when it erupted in 1980 and continued to observe the mountain as a series of 16 smaller eruptions, some lasting only a few days, continued through 1986.
The work at Mount St. Helens in the 1980's had been under a pall of death and devastation; this time, scientists have a rare, close-up view with relatively little danger.
www.nytimes.com /2005/11/29/science/29volc.html?ex=1290920400&en=b72cc5f53c3514d7&ei=5088&partner=rssnyt&emc=rss   (681 words)

  
 Mt. St. Helens
Helens in southwest Washington state disrupted the lives of thousands and changed more than 200 square miles of rich forest into a grey, lifeless landscape.
MSH, an active stratovolcano, is located in southwest Washington State, USA (46.20 N by 122.18 W) approximately a 3 hour drive from Seattle, WA (90 miles) and a 2 and 1/2 hour drive from Portland, OR (65 miles).
The snow on MSH that was not instantly flashed to steam by the heat, melted and formed large mudflows that destroyed 27 bridges, 200 homes, 185 miles of roadway, and 15 miles of railway.
www.olywa.net /radu/valerie/StHelens.html   (974 words)

  
 Mount St. Helens
The explosion of Mount St. Helens on May 18, 1980, was initiated by an earthquake and a rock slide involving one-half cubic mile of rock.
The eruption of Mount St. Helens produced up to 400 feet of stratified rocks which look millions of years old, but were produced in days or hours.
These processes and their effects allow Mount St. Helens to serve as a miniature laboratory for catastrophism.
www.straight-talk.net /evolution/sthelens.htm   (579 words)

  
 Mount St. Helens VolcanoCam - Mount St. Helens National Volcanic Monument
The Mount St. Helens Institute is a private, non profit that exists to provide opportunities for all who desire to learn more about, experience or volunteer at Mount St. Helens.
The Mount St. Helens VolcanoCam is maintained by the Gifford Pinchot National Forest and Mount St. Helens National Volcanic Monument.
The Mount St. Helens Institute works in partnership with the Mount St. Helens National Volcanic Monument, Gifford Pinchot National Forest, Forest Service Pacific Northwest Research Station, Northwest Interpretive Association and the National Forest Foundation.
www.fs.fed.us /gpnf/volcanocams/msh   (764 words)

  
 Welcome to The Mount St. Helens Institute — Mount St. Helens Institute
The Mount St. Helens Institute is a private non-profit organization whose mission is to awaken in people of all ages an appreciation of the natural processes and cultural heritage of the Northwest's volcanic landscapes.
The Mount St. Helens Institute (MSHI) is the non-profit partner of Mount St. Helens National Volcanic Monument, providing educational offerings and resource management programs.
The Mount St. Helens Institute connects people with the mountain through hands-on activities.
mshinstitute.org   (237 words)

  
 The Seattle Times: Local News: Mount St. Helens the state's No. 1 air polluter
Mount St. Helens' lava dome, seen from Johnston Ridge Observatory early last month, is the state's biggest single source of sulfur dioxide.
Since Mount St. Helens started erupting in early October, it has been pumping out between 50 and 250 tons a day of sulfur dioxide, the lung-stinging gas that causes acid rain and contributes to haze.
Mount St. Helens produces between 500 and 1,000 tons a day of carbon dioxide, he estimates.
seattletimes.nwsource.com /html/localnews/2002105397_volcano01m.html   (899 words)

  
 komo news Mount St. Helens Lava Dome Still Growing Fast
MOUNT ST. HELENS - For the first time since Mount St. Helens came back to life at the end of September, KOMO 4 News is being allowed inside the danger zone.
Wally and Mary Luckwitz are just stunned by the beauty of Mount St. Helens as the clouds spill into the crater and mix with the steam.
MSH visitor centers manager Todd Cullings explains, "It could exceed the size of 1986 dome by Christmas and it could refill the crater and be that beautiful cone-shaped mountain the way it was prior to the eruption within about 11 and a half years."
www.komotv.com /stories/34025.htm   (613 words)

  
 Mount St. Helens steams and swells - U.S. News - MSNBC.com
MOUNT ST. HELENS NATIONAL MONUMENT, Wash. - Mount St. Helens blew another cloud of steam skyward Thursday shortly after scientists said its crater floor had risen 50 to 100 feet since Tuesday, indicating that molten magma was moving upward without encountering much resistance.
Mount St. Helens in Washington state continues to show signs of volcanic activity.
Before then, Mount St. Helens had been silent since the 19th century.
www.msnbc.msn.com /id/6092368   (708 words)

  
 Mount St. Helens
New Glacier Forming on the Crater of Mt. St.
glaciercaves.com /html/mount_st__helens.html   (9 words)

  
 Effects of Pyroclastic Surge at Mount St. Helens, Washington
Spirit Lake formed during earlier eruptions of Mount St. Helens as volcanic debris from landslides, lahars, and pyroclastic flows was deposited at the base of the volcano.
Located atop a ridge about 10 km NNE of Mount St. Helens, this tractor was struck by rock and wood debris carried by the pyroclastic surge.
north of Mount St. Helens and reached as far as 27 km (17 mi) from the volcano.
volcanoes.usgs.gov /Hazards/Effects/MSHsurge_effects.html   (945 words)

  
 Category:Mount St. Helens - Wikimedia Commons
Mount St. Helens is an active volcano in the U.S. state of Washington.
Browse categories: Volcanoes of the United States
commons.wikimedia.org /wiki/Category:Mount_St._Helens   (38 words)

  
 MoMA.org Exhibitions 2005 Mount St. Helens: Photographs by Frank Gohlke
The eruption of Mount St. Helens in southwest Washington on May 18, 1980, devastated an area of 140 square miles.
The exhibition is accompanied by a book with reproductions of all the photographs in the exhibition, notes by the photographer, and an essay on Mount St. Helens and the geology of volcanoes by Kerry Sieh and Simon LeVay, authors of The Earth in Turmoil.
From 1981 to 1990 he visited Mount St. Helens five times, working on the ground and from the air over a wide area.
www.moma.org /exhibitions/2005/goelke.html   (264 words)

  
 St. Helens Anniversary Spotlights Surprising Rebound
Mount St. Helens erupted with 500 times the force of the Hiroshima atomic blast.
When Mount St. Helens erupted 25 years ago, the north face of the volcano collapsed in a massive rock-debris avalanche.
Summary When Washington State's Mount St. Helens erupted in 1980, it devastated the landscape.
news.nationalgeographic.com /news/2005/05/0513_050513_mountsthelens.html   (538 words)

  
 CNN.com - Scientists monitor Mount St. Helens after eruption - Oct 1, 2004
Peter Frenzen, a scientist with the Mount St. Helens National Volcanic Monument, said a 2.0 magnitude earthquake was detected.
Mount St. Helens part of Pacific 'ring of fire'
Mount St. Helens blew smoke and ash Friday afternoon.
www.cnn.com /2004/TECH/science/10/01/mount.st.helens   (641 words)

  
 EO Newsroom: New Images - Mount St. Helens
On March 8, 2005, Mount St. Helens belched a large cloud of ash and steam, the largest to erupt from the volcano since October 2004.
Another feature that points to Mount St. Helens’ recent activity is the snow inside the crater, which is tinted brown with ash.
The U.S. Geological Survey estimates that the new lava dome, combined with deformed glacier ice and the part of the crater floor that the dome is lifting up have a volume of about 50 million cubic yards, which is almost one-half of the volume of the old dome prior to the major eruption in 1986.
earthobservatory.nasa.gov /Newsroom/NewImages/images.php3?img_id=16849   (302 words)

  
 The Seattle Times: Local News: Mount St. Helens likely to have small eruption soon, experts warn
Scientists monitoring Mount St. Helens hope to gain a better understanding of the situation from a helicopter flight yesterday that searched for the presence of magma gases that might offer hints of a future eruption.
VANCOUVER, Wash. — Scientists believe there is a significant chance of a small eruption of Mount St. Helens in the days or weeks ahead.
Such an event could fling ash and rocks thousands of feet into the air but would not be expected to pose hazards beyond the volcano's crater and flanks.
seattletimes.nwsource.com /html/localnews/2002048122_sthelens28m.html   (969 words)

  
 World Peace Herald
The last major eruption at Mount St. Helens occurred in May 1980, when the volcano lost nearly a quarter-mile of its elevation.
MOUNT ST. HELENS, Washington-- Mount St. Helens has shown an upswing in volcanic activity over the past two days, U.S. volcano scientists reported.
The glow apparently resulted from the collapse of material at the top of the lava dome, which for that brief time exposed hot rock from deeper inside the mountain.
www.wpherald.com /storyview.php?StoryID=20050223-015306-6230r   (124 words)

  
 Mount St. Helens -- From the 1980 Eruption to 2000, Fact Sheet 036-00
The first sign of activity at Mount St. Helens in the spring of 1980 was a series of small earthquakes that began on March 16.
Mount St. Helens, Washington, is the most active volcano in the Cascade Range.
The cataclysmic eruption of Mount St. Helens, Washington, on May 18, 1980, formed a deep north-facing horseshoe-shaped crater.
pubs.usgs.gov /fs/2000/fs036-00   (1348 words)

  
 CNN.com - 'Volcanic advisory' issued for Mount St. Helens - Sep 30, 2004
Mount St. Helens erupted explosively on May 18,1980, blowing off more than 1,000 feet of the mountain's peak.
Mount St. Helens has been an active volcano for about 40,000 years with intermittent periods of dormancy.
With an earthquake measuring a magnitude of 5.1, Mount St. Helens erupted on May 18, 1980.
www.cnn.com /2004/TECH/science/09/29/mount.st.helens   (780 words)

  
 komo news Eruption At Mt. St. Helens
MOUNT ST. HELENS - A plume billowing thousands of feet into air slowly drifted to the northeast Tuesday as Mount St. Helens released a towering column of steam and ash.
Mount St. Helens rumbled back to life Sept. 23, with shuddering seismic activity that peaked above magnitude 3 as hot magma broke through rocks in its path.
Geologists have said there is little chance of anything like the massive explosion that blew off the top of the peak on May 18, 1980, killing 57 people and covering the region with gritty ash.
www.komotv.com /stories/35624.htm   (677 words)

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