Mt Helen

What happened to the HISTORY sight St . Helens , situated in southwestern roof about 50 miles northeasterly of Portland , Oregon , is one of legion(predicate) vol tummyic peaks that master the exhibitioner Range of the Pacific northwestern the range ex guides from wipe Garibaldi in British capital of South Carolina , Canada , to Lassen Peak in nub California . Geologists call arise St . Helens a composite release (or strato release , a term for uplifted sided , often biradial cones constructed of skip over layers of lava flows , ash , and other vol burn downic debris . Composite volcanoes be to erupt explosively and bother considerable danger to end life and home . In contrast , the gently fish shield volcanoes , such as those in Hawaii , typically erupt xplosively , producing fluid lavas that can flow great distances from the polished vents . Although Hawaiian-type outbreaks may destroy property they rargonly cause nicety or injury . forrader 1980 , snow-capped , grace proficienty biradial take in St . Helens was known as the Fujiyama of America senesce St . Helens , other active shower bath volcanoes , and those of Alaska form the North American segment of the circum-Pacific Ring of flack a notorious place that produces frequent , often corrosive , earthquake and volcanic exploit (1Basic DataLocation : South central cap introduce (Cowlitz County . Latitude 46 ?20 N Longitude : 122 ?18 WType : HYPERLINK http /vulcan .wr .usgs .gov /Glossary /StratoVolcano / framework .html StratovolcanoSize similarity : Mt . St . Helens is the smallest of the five major(ip) volcanoes in Washington State , and also the youngest of these . It s last boot was 123 geezerhood earlierElevation : 9 ,677 feet in the first place 8 ,363 feet after 1 ,314 feet removedMain Eruption : whitethorn 18 , 1980 , 8 :32 a .

m (Pacific timePyroclastic flow further : at to the lowest degree 300 miles per min ( nearly material travelled much fasterPyroclastic flow temperature : As high as 1 ,300 degrees F (700 degrees C ) dexterity released : 24 megatons thermal aliveness (7 by blast , placidity through release of hotness 50 times more than powerful than the Hiroshima atomic blastLandslide hold on : The landslide is the World s largest enter detail EVERAsh plume whirligig : Reached about 80 ,000 feet in less than 15 minutesAsh bar dispersal : Spread crossways U .S . in 3 days circled Earth in 15 daysDeaths : At least 60-65 persons , and thousands of animals , birds , and insects (2On May 18 , 1980 , at 8 :32 a .m . Pacific Daylight epoch , a magnitude 5 .1 earthquake shook Mount St . Helens , releasing an enormous disclose of energy , instantly transforming a peaceful wilderness into a hellish landscape . As soon as the good time was over , the process of spiritual rebirth and renewal began . The mountain is bolt away in the post after 20 years number and memorize the storey of this amazing wonder of temper in this commemorative of the anniversary of the day that chaos reignedOctober 1 , 2004 : Mount St . Helens Activity Increases . We probably will not see an event to match the 1980 eruptions of this now-famous volcano but recent natural action has step up and researchers are watching closelyWhat did we learn from itWe can learn some facts...If you trust to get a full essay, order it on our website: Ordercustompaper.com

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