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2-2 science definitions (second column)

AB
seismographA device that records ground movments caused by seismic waves as the move through earth.
magnitudeThe measurement of an earthquake's strength based on seismic waves and movement along faults.
Mercalli scaleA scale that rates earthquakes according to their intensity and how much damage theuy cause.
Richter scaleA scale that rates seismic waves as measured by a particular type of mechanical seismograph
moment magnitude scaleA scale that rates earthquakes by estimating the total energy released by an earthquake.
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