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THE DYNAMIC EARTH

THE DYNAMIC EARTH. http://www.youtube.com/watch?v=-z8zdoFLZME. http://www.youtube.com/watch?v=rn3oAvmZY8k. EARTHQUAKES. Earthquake. Release of energy when pressure and/or stress is built up between rocks Usually occurs along faults and plate boundaries

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THE DYNAMIC EARTH

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  1. THE DYNAMIC EARTH

  2. http://www.youtube.com/watch?v=-z8zdoFLZME http://www.youtube.com/watch?v=rn3oAvmZY8k

  3. EARTHQUAKES

  4. Earthquake • Release of energy when pressure and/or stress is built up between rocks • Usually occurs along faults and plate boundaries • Causes the area of rock to snap when energy is rapidly released in all directions along seismic waves

  5. Earthquake Terms • FOCUS – actual location of where the earthquakeoriginates • EPICENTER – Surface directly abovefocus

  6. FAULT - Zone of weakness or break in earth’s crust Types of Faults Normal Fault Reverse Fault Strike-Slip Fault

  7. Faults • Normal fault • Found in areas under tension • Where sections of the landscape are pulling apart (divergent) Called Fault Block Mountains

  8. Faults (cont.) • Reverse fault • Found in areas under compression • Zones of convergence Like the Himalaya Mountains

  9. Faults (cont.) • Strike-slip faults • More horizontal movement than vertical movement Like the San Andreas fault in California

  10. http://www.youtube.com/watch?v=s6t6QYBmeWs

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