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A Level Geography
Paper 1
Mount St Helens Case Study
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Created by
Dan Roper
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Cards (16)
Social: How many homes were destroyed?
250
homes
Social: How many bridges were destroyed?
47
bridges
Social: How many miles of railway were destroyed?
15
miles
Social: How many miles of highway were destroyed?
185
miles
Social: How many people died?
57
people
Economic: How much were the damages?
$
860
million
Economic: Which industries were impacted?
Tourism
,
fishing
,
timber
and
farming
Economic: How many board feet of timber were damaged?
4.7 billion
Economic: How many transport vehicles were damaged?
22
transport vehicles
Economic: How many rail cars were damaged?
39
rail cars
Environmental: What happened to the top of the mountain during the eruption?
400
metres were
blown off
of the top of the mountain
Environmental: How many plants and animals were affected during the eruption?
Every plant and animal were killed within
25km
of the eruption
Environmental: How many trees were flattened during the eruption?
Every tree within
30km
of the eruption was
flattened
Environmental: What created the lahars?
Water
from
snow
and
ice
Environmental: How many salmon died?
12
million
Environmental: What was the one positive impact?
Thousands
of new
pond
and
lake
habitats were created which were quickly
colonised