Volcanoes casestudy: Mt. St. Helens May18th 1980

Volcanoes casestudy: Mt. St. Helens May18th 1980

1. Natural Changes

   • Life returned as the area recovered
     • Took 10 years
       • Insects
       • Birds
       • Small traces of green
       • Animals

2. Long-term responses

   • Buildings & bridges need to be rebuilt
   • Forest needs to be replanted
     • Removal of fallen timber
   • Roads to be rebuilt
   • Drainage in the area

3. Immediate responses

   • Shortage of masks
   • Helicopters to search and rescue
   • Rescuing survivors
     • Emergency treatment
     • Found shelter
   • Clear blocked roads
     • Ash
       • Meter deep

4. Location

   • USA
     • Washington st.
   • Cascade Range

5. Eruption Activity

   • 8.32am
   • Earthquake
     • 5.1