Geography Key Terms

Constructive boundary
Where 2 tectonic plates move apart
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Focus
The point below where the earthquake begins
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Destructive boudary
Where the oceanic crust subducts below the continental
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Richter scale
Measures the magnitude of eathquakes
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Social impacts
Impacts of a natural hazard which affects people
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Composite volcano
A volcano with steep slopes and constructed layers of ash and lava
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Shield volcano
A volcano with gently slopes and occurs at constructive plate boundaries
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Lahar
A mudflow created by water and pyroclastic flow
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Pyroclastic flow
A fast moving current of hot gas and rock
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Viscous lava
Thick lava which has cooled quickly and flows slowly
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Other cards in this set

Card 2

Front

Focus

Back

The point below where the earthquake begins

Card 3

Front

Destructive boudary

Back

Preview of the front of card 3

Card 4

Front

Richter scale

Back

Preview of the front of card 4

Card 5

Front

Social impacts

Back

Preview of the front of card 5
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