The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.
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Vibrations from 7.0 quake off California were recorded along East Coast, data shows“Once the earthquake waves are far enough away from the location ... instruments,” the EarthScope Consortium wrote. “This animation, called a Ground Motion Visualization (GMV), shows the ...
A seismometer is an instrument that records the shaking of the Earth's surface caused by seismic waves. The term seismograph usually refers to the combined seismometer and recording device. The first ...
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