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Knipp-7D-Blanngotti
Earth-Quake Vocab
15
Geology
7th Grade
01/07/2013

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Cards

Term
Shear
Definition
Forces that pushes plates appart.
Term
Compression
Definition
Forces that breaks plates.
Term
Tension
Definition
Forces that pull to plates apart.
Term
Strike-slip fault
Definition
Rocks on either side of the fault movinge past each other upward or downward. Caused by shear.
Term
Normal fault
Definition
Rock above the surface moves downward in relation to the rock below the fault surface. caused by compression.
Term
Reverse fault
Definition
Surface is forced up and over the rock below the fault surface. Caused by tension.
Term
Fault
Definition
Surface of where broken rocks move eachother upon surfaces.
Term
Earthquake
Definition
The vibration produced by the breaking of rocks.
Term
Magnitude
Definition
The intensity of an earthquake.
Term
Liquefaction
Definition
When soil acts as a liquid during an earthquake.
Term
Seismograph
Definition
Registers seismic waves and records the times when each arrived.
Term
Focus
Definition
Sudden movement along a fault that releases energy which causes an earthquake.
Term
Epicenter
Definition
The point on the earth's surface directly above an earthquake's focus.
Term
Seismic Waves
Definition
Generated by an earthquake and travel through earth.
Term
Tsunami
Definition
A long high sea wave caused by an earthquake or other disturbance.
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