Tectonics EQ3

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  • Created by: Yespacito
  • Created on: 11-01-20 14:50
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  • Tectonics EQ3
    • Trends in disasters
      • Reporting of disasters
        • Increased over time because: better tech recording, pop. density increasing means more affected, more economic dev. means more damage if destroyed
        • Controversy in statistics
          • Hard to differentiate primary or secondary damage
          • Under reporting of smaller events
          • Political bias to reduce political accountability
          • Hard to accurately collect in major disasters
          • Mega disasters affect trend analysis
      • Mega disasters
        • Large scale disasters that require international mitigation
        • E15 eruption
          • No deaths because in isolated region, but VEI 3 (medium size)
          • Ash cloud spread to Europe, and 100 000 flights were cancelled
          • 25% of trade value is by air, so lost value.
          • Important sensor for Nissan produced in Ireland couldn't be transported so Japan lost money
          • Perishable goods from Africa couldn't be transported so $65million lost
        • Japan 2011
          • 16 000 deaths mostly due to tsunami. 63% of deaths over age 60
          • Fukushima power plant meltdown meant attitudes to nuclear power were less favourable by public
          • Led to natural gas demand increasing so the price increased globally.
      • Multiple hazard zones
        • Many different hazards can occur here
        • California vs Philippines
          • California: rare volcanoes, common earthquakes, frequent landslides, no cyclones, rare floods, common droughts
            • At risk of 3 hazards
              • Philippines more hazard prone than California
          • Philippines: common volcanoes (eg. Pinatubo), frequent earthquakes, frequent typhoons, common landslides, floods are common, rarely drought
            • At serious risk of 5 hazards
              • Philippines more hazard prone than California
    • Models explaining management
      • Hazard management cycle
        • Describes how a disaster can be mangaged
          • Hazard occurs eg. Earthquake
            • Responses: immediate and longer term
              • Rebuild when possible
                • If rich enough, modify causes eg. aseismic design
                  • Hazard occurs eg. Earthquake
                    • Responses: immediate and longer term
                      • Rebuild when possible
                        • If rich enough, modify causes eg. aseismic design
          • Japan (developed)
            • 75% buildings aseismic, little corruption, sea wall too low
              • Texts sent out 7 seconds after first P wave. Emergency kits in place
                • Evacuation in Fukushima after nuclear meltdown warned.
                  • Led to nuclear energy being less popular, and sea wall being built higher
          • China (emerging)
            • Ignored building codes because of corruption leading to bribes from building companies
              • Poorly constructed buildings killed many people
                • 130 000 soldiers in affected areas. Quick restoration of medical services. banks wrote off debts
                  • After 2 years, 97% of planned reconstruction had occurred, 99% of farmhouses rebuilt.
                    • 40 000 relocated in new city, but buildings already getting cracked. Local official arrested for taking bribes
        • Parks model
          • Shows different stages of a hazard's management and how quality of life is affected
            • A hazard causes quality of life to decrease
              • Recovery begins by different methods
                • Quality of life either stays below normal, returns to normality, or has an overall improvement
      • Mitigation strategies
        • Modifying the event itself
          • Tsunami
            • Land use zoning + reducing settlements in high risk zones
              • Planners
            • Restriction of structures eg. no nuclear power in Japan
            • Engineer defences like sea wall
              • Engineers
          • Volcano
            • Diversion channels and barriers
              • Planners
            • Spraying sea water to cool
            • Drain lakes to reduce Lahar risk
          • Earthquake
            • Not possible because unpredictable
              • Scientists
              • In future may be able to predict and mitigate
        • Modifying vulnerability
          • Volcano
            • Land use zoning protects property and evac routes
            • Forecasting and prediction eg. tiltmeters
              • Scientists
          • Earthquake
            • Aseismic design eg. Taipei 101, Taiwan
            • Healthcare and practice drills eg. Japan
            • Communication and transport
            • Emergency texts/warning
              • Gov
          • Tsunami
            • Hi tech monitoring
              • Early warning systems
                • Gov
          • Modifying losses
            • Tsunamis, volcanoes, earthquake
              • Insurance policies for property loss
                • Insurers
              • Emergency aid eg. water, food
                • NGOs
              • Temporary shelters
                • NGOs
      • Players shown by icon
      • Attitudes by smileys
      • Futures by icon

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