Question

What is seismic focus?

Answer 1

Answer:

                                          Seismic Focus

• Seismic focus is defined as the centre point in which the seismic waves originate and the results in the occurrences of earthquake in the earth premises.

• There is the primary difference between the seismic focus and the epicenter.

• The seismic focus is formed inside the earth's surface, focusing on the center point originating the earthquake.

• Whereas the epicenter is the “point on the surface” of the earth, that is vertically above the point of seismic focus.

Answer 2

The place of origin within the Earth of an earthquake; usually some more or less restricted area of a fault surface. If the focus is to be some particular point, it is the central point of the area over which fault movement occurred and caused the earthquake.

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