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Flashcards in Case study: Yellowstone Super Volcano Deck (20)
1

A case study for a volcanic eruption in an MEDC

Mount St Helen's, USA

2

What date did Mt St Helen's erupt?

18th may 1980

3

Where is Mt St Helen's?

Very north of the USA
Near the border of Canada
In the Cascade mountain range
Part of the pacific ring of fire

4

What kind of volcano is Mt St Helen's?

A composite volcano

5

How many people died in the eruption of Mt St Helen's?

57

6

Name one physical effect of Mt St Helen's?

Rivers flooded and silted up to 24km
400 square km of forests were flattened and disappeared
Roads and bridges demolished

7

Economic losses from Mt St Helen's eruption?

US $1.2 BILLION (1980 VALUES)

8

How many houses were destroyed in Mt St Helen's eruption?

250

9

What would a secondary effect of 12% of crops being destroyed?

Loss of farming income

10

Case study for super volcano?

Yellowstone, USA

11

Where is Yellowstone?

Northwest USA

12

Is Yellowstone on a plate boundary?

No, its above a hotspot

13

How much lava will be produces by an eruption at Yellowstone?

10,000km

14

In what radius will everything be destroyed after an eruption at Yellowstone?

100miles

15

How much of the USA will be uninhabitable after an eruption at Yellowstone?

Two Thirds

16

How many could be killed by an eruption at Yellow stone?

87,000 (1 in 3 affected)

17

Ash thickness from Yellow stone?

10ft thick

18

When was the last eruption of yellow stone?

630,000 years ago

19

How much bigger will a Yellowstone eruption be compared to a Mount St Helen's?

1,000 times bigger

20

How high will the ash cloud be at Yellowstone?

2 miles

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