Mount St. Helen's Eruption
By: Rylee Dickerson, Amanda DeVaul and Julianna Barraza
Mount St. Helen's... The great majestic volcano!
Mount St. Helen's eruption in 1980, became the most known in North America! Mount Saint Helen's is located southwestern of Washington and 50 miles northeast of Portland. Mt St Helen is a active stratovolcano. This volcano is 40,000 years old. Another name for Mount Saint Helen's is called Fujiyama of America. Also Mount St Helen's is located in the Ring of Fire.
Before The Disaster
How Did This Volcano Become Famous?!
- Seismographs were signaling at 5.1 earthquake forming under the volcano
- Energy from the earths core could no longer with hold its power
- On May 17,1980, Mt. St. Helen's erupted for the first time
- The eruption lasted for at least 9 hours
- No signs of life were found after the disaster
- A huge mushroom shaped cloud full of ash filled the sky
- The ash traveled into about 9 different states
- This was the largest explosion in US history
Abotic and Biotic factors affected by the blast...
- The sun was covered by the ash for days
- Spirit Lake's water was filled with debris
- The forest trees and plants were burned
- 57 people were killed
- All species of fish and animals were wiped out
After The Explosion
Life in the Mountain!
Replenishing The Forest and Lake!
This is the mountain during the explosion
This is Spirit Lake before and after the eruption
You can see the caved in "bowl" in the mountain
This is a car after the explosions and earthquake
After the Disaster
You can see the piles of ash covering up of what used to be the forest floor.
This is Spirit Lake, blooming with Prairie Lupine!
People around the area had to wear masks to protect themselves from the ash.