St. Helens Case Study (MEDC volcano)
- Created by: Alice kola
- Created on: 17-10-17 13:39
View mindmap
- Case Study: Mount St. Helens
- When?
- 1980
- Where?
- Between Juan de Fuca plate + North American plate
- Long-term responses
- Soil fertility improved due to ash deposits
- Volcano more carefully monitored
- Tourism increaed
- Short-term responses
- Restored communications - roads and bridges
- People rehoused
- Primary effects
- Hot ash and gas destroyed forest + logging camps
- People killed by poisonous gases
- Lahars covered area surrounding the volcano
- Secondary or long-term effects
- Permanently changed landscape
- Ash blocked rivers causing flooding and destroying fishing sites + crops + livestock
- Flooding destroyed communications
- Sediment carried downstream ruined barge transport on river
- Overview
- Active, MEDC stratovolcano
- MEDC advantages
- Financial surplus helps cope with damages
- When?
Similar Geography resources:
Teacher recommended
Comments
No comments have yet been made