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Knipp 7g/Miles Bulls
Earthquake Cards
15
Other
Professional
12/17/2012

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Cards

Term
Shear Force
Definition
Shear is the force that causes rocks on either side of a fault to slide past each other.
Term
Compression
Definition
A force that squeezes rocks toghther.
Term
Tension
Definition
The force that causes rocks on either side of a fault to slide past each other.
Term
Strike-Slip Fault
Definition
Rock on either side of the fault are moving past each other without much upward or downward movement.
Term
Normal Fault
Definition
Rock above the fault surface move downward in relation to the rock below the fault surface.
Term
Reverse Fault
Definition
Break in rock caused by compressive forces,where rock above the fault surface moves upward relative to the rock below the fault surface.
Term
Fault
Definition
Surface along which rocks move when they pass their elastic limit and break.
Term
Earthquake
Definition
Vibrations produced when rocks break along a fault.
Term
Magnitude
Definition
Measure of the energy released during an earthquake.
Term
Liquefaction
Definition
Occurs when wet soil acts more like a liquid during an earthquake.
Term
Seismograph
Definition
Instrument used to register earthquake waves and record the time that each arrived.
Term
Focus
Definition
In an earthquake, the point below Earth's surface where energy is released in the form of seismic waves.
Term
Epicenter
Definition
Point on Eath's surface directly above an earthquake's focus.
Term
Seismic Wave
Definition
Wave generated by an earthquake.
Term
Tsunami
Definition
Seicmic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore.
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