Given the task definition and input, reply with output. Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Question: What is the point on the ground that is located directly above where underground rocks fracture (or the "focus" point)? Answer: epicenter

The focus is where the rocks rupture. The epicenter is the point on the ground directly above the focus.