Question

what is difference between Seismofocus and Seismograph?

Answer 1

A seismic focus is the point below the earth's surface from which the earthquake tremors originate. A seismograph is an instrument which is used to measure the density of an earthquake.

Answer 2

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• A seismograph is an instrument which can record the seismic waves.
• It contains a metal rod or a pendulum which can vibrate as the earthquake occurs.
• The metal rod is attached to a pen which records the waves on the paper.
• Scientists study these waves and then construct a map of the earthquake.
• This also helps them in determining the power of the earthquake.