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The technology of sesimograph is helpful to humans because it

User Molfar
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Answer:

Step-by-step explanation:

Seismographs can detect quakes that are too small for humans to feel. During an earthquake, ground-shaking seismic waves radiate outward from the quake source, called the epicenter. Different types of seismic waves travel at different speeds and through different parts of the Earth during a quake.

User Dejah
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