LAB 5: earthquakes, volcanoes and mountains

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LAB 5 earthquakes, volcanoes and mountains

• Key Question How are earthquakes, volcanoes and
  mountains related?

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• earthquakes, volcanoes and mountains occur at
  plate boundaries

Recent Earthquakes
Volcano Hazards Program
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Mountains

• Occur when 2 continents collide and fold up at
  convergent plate boundaries.

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Earthquakes

• Occur where rock moves along active plate
  boundaries.

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• West coast of the USA
• Transform Plate Boundary
• California
• SAN ANDREAS FAULT
• Convergent Plate Boundary
• Oregon Washington
• CASCADE MOUNTAINS

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Volcanoes

• Occur at Mid Ocean Ridge Iceland
• Occur at subdution zones Pacific Ring of Fire

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Volcanoes

• Gas content of the magma effects the eruption
• Low GasMagma flows peacefully down sides
• High GasPowerful explosions

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Low Gas Content
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High Gas Content
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• earthquakes, volcanoes and mountains occur at
  plate boundaries

Recent Earthquakes
Volcano Hazards Program
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Volcanoes

• An exception to the rule!
• Hot Spot Volcanoes
• -Far from plate boundaries
• -Hot spot in mantle burns through crust forms a
  Volcano
• -Hot spot does NOT move but the crust above does,
  creating a chain of volcanoes

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Hot Spot Volcanoes
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earthquakes, volcanoes and mountains occur at
plate boundaries