The point of origin of an earthquake inside the Earth is called the focus, and the point on the surface directly above it is the epicenter. Severe earthquakes are usually shallow focus-that is, they occur within 60 km (37 miles) of the surface.
Check Also
World Lupus Day: Date, History, Significance, Facts about autoimmune disease
World Lupus Day is dedicated to people worldwide who suffer from this debilitating autoimmune disease …