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The size and strength of earthquakes are measured using two main scales: the Richter scale and the moment magnitude scale (Mw). The Richter scale quantifies the amplitude of seismic waves, while the moment magnitude scale provides a more accurate estimate by considering the fault's area, slip, and the rock's rigidity. Both scales help assess the earthquake's impact and potential damage. Seismographs are the instruments used to record seismic waves and calculate these measurements.

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19h ago

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