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luisch.6

earthquakes

QuestionAnswer
a large section of Earth's crust and upper mantle that moves around on the asthenosphere plate
surface along which rocks move when they pass their elastic limit and break fault
vibrations produced by the breaking of rocks along a fault earthquake
break in rock caused by tension forces normal fault
break in rock caused compressive forces reverse fault
break in rock caused by shear forces strike-slip
rhythmic movement that carries energy through matter and space wave
waves generated by earthquakes seismic waves
the point where the energy release first occurs focus
waves that move rock particles back and forth in the same direction that the waves travel primary waves
seismic wave that moves rock particles at right angles to the direction of the wave secondary wave
seismic wave that moves rock particles up-and-down in a backward rolling motion and side-to-side in a swaying motion surface wave
point on Earth's surface directly above an earthquake's focus epicenter
instrument used to register earthquake waves and record the time that each arrived seismograph
the highest point of a wave crest
measure of the energy released during and earthquake magnitude
occurs when wet soil acts more like a liquid during an earthquake liquefaction
seismic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore tsunami
Created by: lvaler2973
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