What Causes an Earthquake?

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Presentation transcript:

What Causes an Earthquake?

This is because friction stops them from moving easily When plates collide or rub past each other, they can cause the Earth to shake. This is because friction stops them from moving easily

The point inside the crust where the pressure is released is called the focus. The point on the Earth's surface above the focus is called the epicentre. Earthquake energy is released in seismic waves. These waves spread out from the focus. The waves are felt most strongly at the epicentre, becoming less strong as they travel further away. The most severe damage caused by an earthquake will happen close to the epicentre.

TASK: To complete a story board about what happens in an earthquake. You must include - 'plates moving' 'friction‘ 'jerky movements shake Earth' 'focus' 'epicentre' 'seismic waves' ‘after effects’ Title – WHAT CAUSES AN EARTHQUAKE?