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EARTHQUAKES
By: Kjerstin Olsen
Why do earthquakes happen?
Earthquakes are usually caused when rock underground suddenly breaks along a fault.
..Why do earthquakes happen?
This sudden release of energy causes the ground to shake.
How do earthquakes happen?
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.
..How do earthquakes occur?
The spot underground is called the focus of the earthquake.
..How do earthquakes occur?
The plate directly above the focus, the area on the surface, is called the epicenter of an earthquake.
Earthquakes in Action
The End
Credits:www.geo.mtu.edu/Upeis/why.html
