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Seismograph.swf
     


Title: Seismographs.
Caption: This illustration shows the epicenter of an earthquake and a seismograph some distance away, with a close-up inset of the seismograph. Earthquake waves travel through the mass of rock and encounter the chamber housing the seismograph. The inset details how the seismograph records the seismic waves.
Keywords: earthquakes, seismic waves, seismographs, seismograms