Presentation is loading. Please wait.

Presentation is loading. Please wait.

By: Kjerstin Olsen  Earthquakes are usually caused when rock underground suddenly breaks along a fault.

Similar presentations


Presentation on theme: "By: Kjerstin Olsen  Earthquakes are usually caused when rock underground suddenly breaks along a fault."— Presentation transcript:

1

2 By: Kjerstin Olsen

3

4  Earthquakes are usually caused when rock underground suddenly breaks along a fault.

5  This sudden release of energy causes the ground to shake.

6  When two blocks of rock or two plates are rubbing against each other they stick. The rocks do not slide smoothly, they catch on each other. After a while, the rocks break because of all the pressure built up. When the rocks break, an earthquake occurs.

7  The spot underground is called the focus of the earthquake.

8

9  The plate directly above the focus, the area on the surface, is called the epicenter of an earthquake.

10

11

12

13 Credits:


Download ppt "By: Kjerstin Olsen  Earthquakes are usually caused when rock underground suddenly breaks along a fault."

Similar presentations


Ads by Google