Q. Which one of the following correctly describes the focus of an earthquake?

[A] The point on the Earth surface directly above the epicentre

[B] The point where seismic waves reach the surface

[C] The point inside the Earth where the earthquake originates

[D] The location with the maximum damage

Answer: C
Notes:

Explanation – The focus (also called the hypocenter) of an earthquake is the point inside the Earth where seismic waves originate due to the rupture of rocks along a fault line. It is the true origin of the earthquake, located at depth beneath the Earth’s surface.

Source: The Hindu

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