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What causes Earthquakes?
Vibrations or seismic waves in the Earth
The location where the energy of the earthquake is released
Focus
The location on the surface of the Earth where an earthquake took place
Epicenter
Cracks on the crust where rocks slide
faults
Fault caused by tension force
Normal fault
Fault caused by compression force
Reverse fault
Fault caused by shear force
Strike-slip Fault
What type of force is a stretching or pulling force?
tension force
What type of force is a pushing together?
compression force
What force has a side-slipping of one slab past another slab?
Shear force
Faults that result in vertical change?
Normal and Reverse
Fault that results in horizontal change?
Strike-slip Fault
Mild shakings before the major one
Foreshocks
Adjustments of the crust after an earthquake
Aftershocks
Waves that begin at focus and travel outwards in all directions
seismic waves
Wave that is the fastest and thus hitting the surface first
P - Waves
