Earthquakes

1. Landslides

2. Underground surface of rocks breaking under stress is called a fault plane

3. Vibrations caused from rocks breaking under stress

4. Damage Caused

5. Sudden Tremor of Earth's Crust

6. Tectonic Plates Collide

7. What Causes an Earthquake

8. Measurement of Earthquake

9. Houses and building to topple

10. Fires can occur from downed power lines and ruptured gas mains

11. Magnitude number is a measurement of energy released by the earthquake

12. The magnitude of Earthquake is determined by measuring amplitude the seismic waves recorded

13. Seismographs

14. Tsnuamis

15. Aftershocks

16. After Effects

17. Undersea earthquakes can cause a tsunami waves that can cause damage to coastal areas

18. Smaller earthquake that occurs after a larger earthquake

19. Aftershocks are formed as the crust around the fault plane adjusts from the effects of the main shock