Question

define seismic focus

Answer 1

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.

Answer 2

the place of origin within the earth of an earthquake usually some more or less restricted area of 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 is called seismic focus