Question

Which statement describes the location of an earthquake’s epicenter?

It is located using a single set of data.
It is determined by the Mercalli Scale.
It is determined by the arrival time of surface waves.
It is located at the point directly above the focus

Answer 1

It is located at the point directly above the focus.

(The epicenter is the surface point above the earthquake focus/hypocenter; seismologists locate it by triangulating distances from multiple stations using P– and S‑wave arrival times.)