Plate Tectonics

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  • Created by: Rachelle
  • Created on: 21-04-13 09:19
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  • Soufriere Hills 1997 Volcanic Eruption
    • June 25, 1997
    • 19 deaths
      • 7 injuries
    • Causes
      • Destructive plate margin:Carribean Plate subduing AtlanticPlate
        • Magma Rose up through weak points, creating pool of magma.
          • Rocks collapse above pool, opening vent for eruption
    • Impacts
      • Ash
        • Plymouth covered in 15m
      • Pyroclastic Flow
        • 20 villages
        • 2/3 homes
      • 2/3 lof population left island since 1997
      • Volcanic ash increase soil fertility
      • Tourism increasing to see volcano
      • Islanders evacuated from south to north
      • Montserrat Volcano Observatory to predict future eruptions.
      • UK gave £58m for aid
    • Volcanic Explositivity Index: 3/8 (moderatley large)
  • Plate Tectonics
    • Soufriere Hills 1997 Volcanic Eruption
      • June 25, 1997
      • 19 deaths
        • 7 injuries
      • Causes
        • Destructive plate margin:Carribean Plate subduing AtlanticPlate
          • Magma Rose up through weak points, creating pool of magma.
            • Rocks collapse above pool, opening vent for eruption
      • Impacts
        • Ash
          • Plymouth covered in 15m
        • Pyroclastic Flow
          • 20 villages
          • 2/3 homes
        • 2/3 lof population left island since 1997
        • Volcanic ash increase soil fertility
        • Tourism increasing to see volcano
        • Islanders evacuated from south to north
        • Montserrat Volcano Observatory to predict future eruptions.
        • UK gave £58m for aid
      • Volcanic Explositivity Index: 3/8 (moderatley large)
    • Volcanic Hazards
      • Pyroclastic Flow
        • Giant clouds of ash + gas
      • Lava Flow
      • Tephra
        • Volcanic bombs
      • Lahar
        • Hot ash + gas melt w/ snow
      • Ash Clouds
      • Poisonous Gas
        • Carbon Monoxide
        • Sulfur Dioxide
    • Volcano Types
      • Shield
        • HAWAII Mauna Loa
        • Runny lava
        • Low, flat, wide
      • Dome
        • CARIBBEAN Mt. Pelee
        • Layers of lava
        • Steep sided
      • Composite
        • JAPAN Mt. Fuji
        • Layers of ash anlava
        • Steep sided

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