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Earthquakes
Everette McDuffie
24
Science
7th Grade
03/04/2014

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Cards

Term
Fault
Definition
Surfaces where rocks break upon
Term
earthquake
Definition
the vibrations produced by the breaking of rock
Term
normal fault
Definition
is when rocks are stretched it formed a normal fault. (divergent)
Term
reverse fault
Definition
is when rocks break from pushing from opposite directions (convergent)
Term
strike-slip fault
Definition
is wen rocks are moving past each other (transformation)
Term
seismic wave
Definition
pressure wave generated by an earthquake
Term
focus
Definition
point underground where earthquake begins
Term
epicenter
Definition
point on the Earth's surface right above the focus
Term
primary waves
Definition
fastest, underground
Term
secondary waves
Definition
next fastest, underground
Term
surface waves
Definition
slowest, travels on surface, most distinctive
Term
siesmograph
Definition
intrument used to meusure earthquakes (size and location)
Term
magnitude
Definition
strenghth of earthquake
Term
richter scale
Definition
measurement of earthquake magnitude
Term
liquefacation
Definition
when ground acts like a liquid during an earthquake
Term
tsunamis
Definition
large wave caused by an earthquake
Term
Is a strike-slip fault found at a convergent boundary
Definition
NO transform
Term
what causes a fault
Definition
breaking rocks
Term
what is the strength of an
Definition
Term
Where did the largest earthquake occur
Definition
California
Term
How many earthquakes occur each year
Definition
500,000
Term
How many of them can actually be felt
Definition
100,000
Term
what percent is that
Definition
20%
Term
What was the largest earthquake ever recorded
Definition
China
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