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Vocabulary chapter w

lots of science words

QuestionAnswer
Plate a large section of earths crust and rigid upper mantel that moves around on the athenosphere
fault surface along which rocks move when they pass their elastic limit and break
earthquake vibrations produced when rocks break along a fault
normal fault break in rock caused by tension forces where rock above the fault srfaces moves down relative to the rock below the fault surface
reverse fault break in rock caused by compressive forces where rock above the fault surface moves up and towards relative to the rock below the fault surface
strike slip fault break in rock caused by shear forces where rocks move past each other without much vertical movement
wave rythmic movement that carries energy through matter and space
seismic waves wave geverated by an earthquake
focus in an earthquake the point below earths surfaces where energy is released in the form of seismic waves
primary waves seismic wave that moves rock particles back and forth in the same direction that the wave travels
secondary waves seismic waves that moves rock particles at right andles to the direction of the waves
surface waves seismic waves that moves rock particles up and down in a backward rolling motion and a side to side swaying motion
epicenter point on earths surface directly above an earhquakes focus
seismograph instrument used to register earthquake waves and record the time that each arrived
crest the highest point of a wave
magnitude measure of the energy released during an earthquake
liquification occurs when wet soil acts more like liquid durring an earthquake
tsunami seismic sea wave that begins over and earthquake focus ans can be highly destructive when it crashes on the shore
Created by: briannao3
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