- Large vibrations moving through rocks and minerals
- elastic rebound- stored potential energy that is released
Faults-
1) strike slip-caused by sheared forces
2) reverse-caused by compression forces
3) normal-caused by tension forces
Seismic Waves-waves moving through the ground which are released by potential energy in faults.
Primary Waves-causes rocks to move back and forth in the same direction as the wave
Secondary Waves-causes rocks to move at right angles to the wave
Surfaces Waves-destruction
Epicenter-the point the earthquake starts at the surface
Focus-directly below the epicenter
Mercalli's Scale- Scale of damage on a scale of 1-10
Seismic Safe-buildings that are safe against earthquakes
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