It is called the epicenter. It is usually underground, and the spot at ground level where is earthquake is worst is usually directly above the epicenter. Hope this helps! :)
The original location of an earthquake is also generally known as the epicentre (it's the very centre of the ground shaking).
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The original location of an earthquake is referred to as the focus or hypocenter, while the epicenter is the point on the Earth's surface directly above the focus. The focus is where the seismic waves originate, and it varies in depth below the surface. The epicenter is crucial for understanding the earthquake's effects, as it is often where the strongest shaking occurs.
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