Opportunities and risk

Opportunities and risk

1. Structure of earth

   • Crust
   • Mantle
   • Core

2. Constructive / divergent plate boundary (reverse fault)

   • Mid-oceanic ridge + rift valley
   • Transform fault
   • Submarine volcanoes + volcanic island

3. Volcanism

   • Extrusive
   • Intrusive

4. Destructive / convergent plante boundary (normal fault)

   • Ocean-continent collision
     • ocean trenches
     • fold mountain ranges
     • volcanoes
   • Ocean-ocean collision
     • ocean trench
     • volcanic island arc
   • Continent-continent collision
     • fold mountain

5. Earthquake

   • Destruction
   • Way to measure
     • Richter scale
     • Modifies Mercalli intensity scale
   • Characterictic

6. Tsunamis

   • Cause
     • Submarine earthquake
     • Submarine volcanic eruption
     • Submarine landslides

7. Minimize losses

   • Monitoring and warming system
   • Hazard-proof design
   • Land-use planning
   • Education and drills
   • Rescue system
   • Disaster aid and insurance

8. Reasons LDCs suffer more damage

   • Level of economic development
   • Strength of buildings
   • Population density
   • Social value, education and awareness of people
   • Government efficiency

9. Opportunity

   • Fertile soil
   • Metals and minerals
   • Geothermal power
   • Recreation