Mt St Helen's Volcanic Eruption Flashcards
What is our case study for a volcanic eruption in a MEDC?
Mt St Helen’s, USA.
What date did Mt St Helen’s erupt?
18th May, 1980.
Where is Mt St Helen’s?
Very North of USA.
Near border of Canada.
What mountain range is Mt St Helen’s part of?
Cascade Mountain range.
What is Mt St Helen’s part of?
The pacific ring of fire.
What type of volcano is Mt St Helen’s?
Composite Volcano.
How many people died due to the eruption?
57 deaths.
What happened to the rivers?
What kind off effect is this?
Rivers flooded and silted up to 24 Km.
Physical effect.
How much forest was flattened?
What kind off effect is this?
400 square km of forest flattened.
Physical effect.
What was demolished?
Roads.
Bridges.
Buildings.
What was the economic loss as a result of the eruption?
US $1.2 billion.
1980 values
How many houses were destroyed because of the eruption?
250 houses.
What % of crops were destroyed?
12%.
What is a secondary effect from losing crops?
Loss of farming income.
What lake was filled and with what?
Lake spirit.
Debris.
