ESC 115 Physical Geology

Outline for Test 3

• Risk= probability of hazardous event multiplied by the cost if that event happens
  • Probabilities
    • historical data
    • measurements and models of the physical system
  • Costs
    • destruction
    • death
• Earthquakes
  • processes and measurements
  • hazards
• Volcanoes
  • precursor events
  • hazards
• Coastal hazards
  • beach restoration
  • sea level changes
  • coastal wetlands and estuaries
  • glaciation and absolute sea level
• Streams and floods
  • Basins and divides
  • Changes from head to mouth
  • Processes and form
  • Flood causes

Key idea: To keep humans and the Earth safer, we must way the hazards and their potential costs and decide how to focus our resources.