Earthquakes Revision

View mindmap
  • Earthquakes
    • Key Facts
      • happen mostly over Asia and Australia
      • least over Antartica
      • measured on the richter scale
      • damage is measured by the mercalli scale
      • occur along plate boundaries
    • Key Words
      • Epicenter
        • the point above the focus on the earth's surface
      • Focus
        • the point of the earthquake in the crust
      • Seismic Waves
        • the waves that cause the tremors
    • Living With Earthquakes
      • 3 P's
        • predict
          • can forecast when it will happen; not an exact science- monitor tremors
        • prepare
          • immediately  before - drills - emergency services - grab bags
        • protect
          • building approapriately - years and months before
      • Predicting
        • detection
          • sensitive instruments measure the earths movements/ rock stress
        • foreshocks
          • small tremors in a small space of time occur before a large earthquake
        • frequency
          • the number of recent earthquakes are plotted to see if an earthquake is likely
    • Living With Earthquakes 2
      • why?
        • cheaper
        • volcanoes - fetile soil
        • tourists
      • "drop, cover, hold on"
      • grab bags
      • reinforced buildings

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Earthquakes resources »