GEOLOGY

Detailed explanation-1: -The surface where they slip is called the fault or fault plane. The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

Detailed explanation-2: -The focus is the place inside Earth’s crust where an earthquake originates. The point on the Earth’s surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions.

Detailed explanation-3: -The epicenter, epicentre or epicentrum is the point on the Earth’s surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates.

Detailed explanation-4: -The point where the earthquake originates is called the seismic focus. The point on the Earth’s surface vertically above the focus is called its epicentre.