Q.

The point exactly above the focus of an earthquake on the surface of the earth is known as [[1]].


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Detailed Solution

The point exactly above the focus of an earthquake on the surface of the earth is known as the epicentre.
The focus is the point at a depth inside the earth from where the seismic waves start. And the point exactly above it over the earth's surface is known as the epicentre of an earthquake. The epicentre tends to be the point on the surface that experiences the most shaking. It is the first place the seismic waves hit on the surface after the initial rupture has occurred. However, this is not always the case. If an earthquake rupture is particularly large, the initial hypocenter location may be one of several hotspots where energy is released.
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The point exactly above the focus of an earthquake on the surface of the earth is known as [[1]].