Natural Hazards

  • Created by: Emily
  • Created on: 07-02-18 09:25
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  • Natural Hazards
    • Natural Hazard:A natural event that threatens people or has the potential to cause damage, destruction and death.
      • Hazard Risk: The probability or chance that a natural hazard may take place.
    • The effects of and responses to, a tectonic hazard vary between areas of constructing levels of wealth.
      • Factors affecting hazard risk
        • Frequency (It happens)
        • Magnitude of the event
        • The ability of people to cope with it.
      • Effects: What happens as a result, response what people do.
    • Monitoring the risk of earthquakes
      • Seismologists
      • Radon gas
      • Detect devices
    • Monitoring the risk of volcanoes
      • Tiltmetres
      • GPS
      • Ground surface areas
      • Sulfur dioxide
    • Types of plate boundaries
      • 1.Constructive
        • Magma from the mantle, moves up to fill the gap. E.g. Shield volcanoes, non violent.
      • 2a. Destructive (Collision)
        • Two plates coming together & are the same type which buckle up. E.g. Fold mountains
      • 2b.Destructive (Subduction)
        • One continental & one oceanic which sinks underneath the continental plate. E.g. Violent volcanoes
      • 3. Conservative
        • Moving in opposite directions, leads to violent earthquakes.

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