Restless Earth

It's really crowded and doesn't make any sense but I just needed to get my case studies on

HideShow resource information
  • Created by: Sophie
  • Created on: 03-06-13 20:04
View mindmap
  • Restless Earth
    • Case Studies
      • Kobe
        • 35000 injured 5000 deaths
        • Motorways bridges homes offices port collapsed
        • Fires triggered by broken gas pipes
        • Congestion
        • Floods
        • $220 billion damages
        • Businesses had to close
        • 316000 left homeless
        • People evacuated
        • Emergency rations provided
        • Rescue teams searched for 10 days
        • Motorola maintained free telephone connections
        • New buildings built further apart
        • Drills
      • Mount St Helens
        • Hot ash and gas destroyed forests
        • 63 people killed mainly by poisonous gases
        • Lahars
        • Flooding destroyed communications
        • Ash blocked rivers destroyed popular fishing sites and also crops
        • Roads and bridges repaired
        • People rehoused
        • Felled trees removed
        • Volcano now more carefully monitored
        • Tourism has increased and soil fertility has improved
      • Bam
        • Trees badly damaged
        • 60% of buildings destroyed mostly made of mud brick
        • 26000 killed, 20000 injured 60000 displaced
        • Diarrhoea and cholera spread due to dirty water
        • Tourists industry lost as castle ruined
        • Problems in education system
        • Thousands without proper shelter
        • Thousands of businesses destroyed economic loss 920 million
        • 2 hours Iranian Red Crescent arrived followed by army
        • People searched through the rubble for survivors
        • Tented cities set up
        • A lot of people gave blood
        • World bank proposed loan of £184 million for ecnomic recovery
        • Strengthened buildings
      • Mount Nyiragongo
        • 100 died
        • 12500 homes were destroyed
        • UN sent 260 tonnes of food
        • TV appeal
        • Emergency measles vaccinations
        • Gov around world sent $35 million
    • Plate Boundaries
      • Conservative
        • Two plates slide past each other creating friction along the fault creating a lot of pressure, when  the two plates get stuck they slip and the pressure is released as an earthquake
      • Constructive
        • Two plates move away from each other, and the magma rises up from the mantle to fill the gap, and it sticks to the crust forming new land and sometimes a volcano
      • Collision
        • As two contintental crust plates head towads each other, they are the same density so don't subduct and instead bucke up to form mountains
      • Destructive
        • An oceanic and continental plate head towards each other, the oceanic subducts beneath the continental because it is denser, it melts in the subduction zone due to high temperatures
        • Volcanoes
          • Magma rises through cracks in the earth's crust, and then once the pressure is too much it blows the top of and the magma will then form new crust over time creating a volcano
        • Earthquakes
          • The two plates are pushing hard against each other causing a lot of friction and building up pressure and then the plate will snap releasing the pressure as an earthquake and sometimes accompanied by a tsunami as the plate pushes it
    • Predicting and planing
      • Volcanoes
        • Concrete lahar channels divert dangerous mudlows
        • Seismometers  as earthquakes increase as magma rises
        • Boreholes measure water temp as magma heats it up
      • Earthquakes
        • Drills and education
        • Strengthening buildings with deep foundations, steel frames, shock absorbers
        • Evacuation
      • Magnitute, shallow focus as more shaking, epicentre, time
      • Poorly equipped emergency services
      • Weaker buildings
      • Densely populated
    • Why worse

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Rock landscapes and processes resources »