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Earthquake waves

Earth Science terms

TermDefinition
earthquake
position of "rock rupture" at depth that causes earthquake focus
point on earths surface directly above where earthquake starts epicenter
the plates snap back into a unbent position elastic rebound
the movement that follows a major earthquake aftershock
small earthquakes before a major earthquake foreshock
measures the amount of shaking at a particular location intensity
the size of the earthquake at its source magnitude
measures intensity based on observed effects of quakes on earths surface, humans, and manmade structure mercalli scales
measured earthquake energy from seismic waves using seismograph richter scale
instrument for recording earthquakes seismograph
the data output of a seismograph seismogram
disturbance that transmits energy wave
wave particles vibrate perpendicular to wave direction transverse wave
wave particles vibrate parallel to wave direction longitudinal wave
material a wave moves through medium
upward displacement of a wave crest
downward displacement of a wave trough
height of a wave amplitude
distance between consecutive waves wavelength
primary body wave (earthquake); fastest; least damaging; longitudinal wave p waves
s waves
surface waves
travel-time graph
triangulation
Created by: kolt jones
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