Q. What does an “Epicenter” of an earthquake means ?
Answer: point at ground level directly above the point of initial rupture
Notes: The point at ground level directly above the point of initial rupture in an earthquake is known as the epicenter. This is the point on the surface of the Earth that is closest to the location of the earthquake's initial rupture, or focus. The epicenter is typically determined by seismologists using data from seismographs, which measure the intensity and duration of the earthquake at various locations. The epicenter is an important point of reference for understanding the characteristics of an earthquake, including its magnitude and the distribution of its effects.