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Seismologists use two main devices to measure an earthquake: a seismograph and a seismoscope. The seismograph is an instrument that measures seismic waves caused by an earthquake. The seismograph has three main devices, the Richter Magnitude Scale, the Modified Mercalli Intensity Scale, and the Moment-Magnitude Scale. The seismoscope is an instrument that measures the occurrence or the time of an occurrence of an earthquake ("Inventors"). Unlike other measuring devices, the seismoscope is a simple device without any technological background. The seismoscope is the oldest and most accurate instrument for measuring direction.

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Abbie Hyatt

Lvl 13
3y ago

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