Mount Saint Helens

By: Kris Trevino

The Ecosystem before the eruption

Before the eruption of Mount Saint Helen's there was two months of intense earthquakes activity.Before the eruption, the dense forest cover meant there was little light and low speeds in the area.

The Ecosystem During the eruption

During the eruption, a 300-mile-an-hour lateral blast of hot air flattened the surrounding old growth forest.The eruption triggered the largest debris avalanche recorded in history. the eruption was 20,000 times more powerful than the atomic bomb droped on Hiroshima

The Ecosytem after the eruption of Mt. St. Helens

after the eruption of Mount Saint Helens every thing was flat. trees were flat there was no animals. 11 billion feet of timber was all wasted. pretty much everything in the path of the blast was demolished and gone. 7,000 animals died including deer,elk,fish,and birds. also 57 people died in the blast too. the reason why they died was because of the ashes


  • During the past 4,000 years, Mount St. Helens has erupted more frequently than any other volcano
  • Mount Saint Helens got its name from the British diplomat Lord St. Helens
  • When Mount Saint Helens erupted it destroyed over 500 house's

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