mt etna a2

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  • HIC Volcano Mt Etna
    • 12 July 2001
    • Destructive Plate Boundary - Eurasian plate and African plate
      • Strombolian style eruption
        • Frequent explosive eruptions
          • Steam and Tephra
          • Every 1.7 years
            • good soil fertility
          • Inhabitants have experience of managing eruptions
            • Knew what to do - rebuilt housing using wreckage
      • 2 continental plates
        • basaltic lava
          • not explosive low in silca       not very viscous
          • composite volcano
    • social effects
      • 77 dead
      • health risks, lava went 400m into air
      • destruction of homes
      • loss of jobs
    • Environmental effects
      • asphyxiation of animals and plants
      • destruction of agriculture
      • habitat destruction
      • volcanic ash
      • gas plumes
    • Economic Effects
      • catanina airport forced to shut
      • agricultural land covered in ash
      • reduced tourism
      • government offered tax breaks for villagers affected
    • Monitoring
      • gases and emissions tests
      • volume of sulphur dioxide in gas estimates volume of magma
      • INGV monitored it for more than 20 years
    • Management
      • 2002 - dams of soil built to divert lava
      • explosives used to divert lava away
    • History
      • 25% of Sicilian population live on the slopes
      • very well monitored
  • Destructive Plate Boundary - Eurasian plate and African plate
    • Strombolian style eruption
      • Frequent explosive eruptions
        • Steam and Tephra
        • Every 1.7 years
          • good soil fertility
        • Inhabitants have experience of managing eruptions
          • Knew what to do - rebuilt housing using wreckage
    • 2 continental plates
      • basaltic lava
        • not explosive low in silca       not very viscous
        • composite volcano

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