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  • Created by: laura011
  • Created on: 20-03-19 14:01
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  • California - Multiple hazard Zone
    • Landslides
      • risk is high as lots of buildings on slopes and coastal land overlooking ocean
      • occur on unstable steep land - triggered by coastal erosion, extreme weather and earthquakes
    • Eathquakes
      • San Andres Fault runs the length - conservative plate boundary
        • earthquakes occur when pressure is built up and the suddenly released as plates jerk past each other
      • 2 -3 earthquakes per year, 5.5+ on Richter Scale
    • Capacity to cope
      • over 70% of California live within 50km of a fault line
      • largest economy in USA - economic losses when a disaster occurs
      • population of 40 million
      • 20% of the population live below the poverty line - most vulnerable
    • Droughts
      • caused by La Nina events - surface water in eastern pacific ocean in cooler.
        • less evaporation so less precipitation
        • cause wildfire - dry vegetation is very flammable
        • 2018 - wildfires, 102 fatalities
    • Volcanoes
      • 20 active volcanoes
      • no eruption since 1915
  • Eathquakes
    • San Andres Fault runs the length - conservative plate boundary
      • earthquakes occur when pressure is built up and the suddenly released as plates jerk past each other
    • 2 -3 earthquakes per year, 5.5+ on Richter Scale

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