Answer:
Seismologists
Explanation:
Seismologists are Earth scientists that study the origin and propagation of seismic waves in geological materials (from small samples to the Earth), they also study the earthquake's results (tsunamis, landslides, etc) and can predict where major earthquakes are likely to occur based on their observations.
Seismologists use seismographs as their most important tool because they collect and record the vibrations of Earth.
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