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earthquake
connor hamed
22
Science
7th Grade
03/06/2014

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Cards

Term
what is a fault
Definition
a fault is a place where a rock breaks
Term
earthquake
Definition
vibrations caused by breaking rocks
Term
normal fault
Definition
plates pull apart at a divergent boundary
Term
reverse fault
Definition
plates push together found at a convergent boundary
Term
strike slip fault
Definition
plates slipe past eachother found at transform boundary
Term
seismic wave
Definition
pressure wave generated by an earthquake
Term
focus
Definition
point underground where earthquake begins
Term
epicenter
Definition
point on earths surface right above the focus
Term
primary waves
Definition
fastest and underground
Term
secondary
Definition
next fasted also underground
Term
surface wave
Definition
slowest travel on surface, most distructive
Term
seismograph
Definition
instrument usedx to measure earthquakes, size and location
Term
magnitude
Definition
strength of earthquake
Term
richter scale
Definition
measurement of earthquake magnitude
Term
liquifacation
Definition
when the ground acts like a liquid during an earthquake
Term
tsunamis
Definition
large wave caused by an earthquake
Term
largest recent earthquake
Definition
California 6.8 magnitude
Term
how many earthquakes occur each year
Definition
500000
Term
how many of them can alctually be felt
Definition
100000
Term
what percent is that
Definition
1/5 or 20%
Term
largest earthquake everrecorded
Definition
was in central china
Term
most deadly earthquake was where
Definition
central China
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