Download semester review - edwin

Earthquakes
Tsunami
S-Waves
Crust
P-Waves
Faults
Earthquakes
Epicenter
Richter scale
Mercalli scale
Seismograph
Thanks to Science probe 2
Book! And
http://www.usgs.gov
Faults
Fault: A crack in a rock body along which
there has been some movement.
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Crust
Crust: Comparatively thin, outermost, solid
layer of the Earth.
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Tsunami
Tsunami: A large sea wave usually trigged by
an earthquake on the sea floor.
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Richter scale
Richter scale: A scale of earthquake magnitude,
based on seismograph recordings, that is a
measure of the amount of energy released from
an earthquake.
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S-Waves
S-Waves: Move more slowly than a P-Wave,
it is the second wave to arrive.
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P-Waves
P-Waves: are the first wave to arrive at a
seismograph.
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Mercalli scale
Mercalli scale: A scale of earthquake intensity
based on observation of the effect produced
by ground motion.
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Epicenter
Epicenter: A location on the surface of the
Earth directly above the point (focus) where
an earthquake.
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Seismograph
Seismograph: A mechanical instrument used
to measure ground motion graphically:
usually measures motion form earthquakes.
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