A seismograph is a device used to measure earthquakes. It records the motion of the ground during seismic events and helps in analyzing the characteristics of earthquakes.
Modern geologists use seismographs. What is a seismograph?
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A device used to measure earthquakes
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A device used to measure the amount of lava flow from a volcano
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A device used to measure the speed of lava erupting from a volcano
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A device used to measure the strength and intensity of a volcano
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