1. Earthquakes
Location of worldwide earthquakes

2. What are Earthquakes?
• The shaking or trembling caused by the sudden
release of energy
• Usually associated with faulting or breaking of rocks
• Continuing adjustment of position results in
aftershocks

3. Earthquakes
• Plates moving in any
direction causes
earthquakes
• The worst are caused by
plates rubbing past
each other as in C
• This happens along the
Californian coast

4. Earthquakes

5. Earthquakes

6. Earthquakes

7. Earthquakes

8. Earthquakes
epicentre
seismic waves
hypocentre (focus)
Earthquakes are caused by a sudden
release of energy from
the Earth’s crust.

9. Effects of earthquakes
Richter Scale 9.6
landslides
tsunami
damage to buildings
epicentre
Chile (1960) seismic waves hypocentre (focus)