GEOLOGY

Detailed explanation-1: -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-2: -The epicenter is directly above the earthquake’s hypocenter (also called the focus).

Detailed explanation-3: -The point where the waves originate is called the focus of the earthquake. The point within the earth along the rupturing geological fault where an earthquake originates is called the focus, or hypocenter. The point on the earth’s surface directly above the focus is called the epicenter.

Detailed explanation-4: -The hypocenter is the true location of the earthquake at depth, while the epicenter is merely a point on the earth’s surface. Seismographs are devices that are used to measure ground motion caused by earthquakes. Scientists can use seismographs and seismic wave arrival times to find the epicenter.

Detailed explanation-5: -The epicentre is the worst affected area on the Earth’s surface when the earthquake occurs. The point inside the earth right under the epicentre is called the focus.