Examine the diagram above and explain each of the three terms shown in the diagram - Junior Cycle Geography - Question B - 2011

Epicentre: The epicentre is the point on the Earth's surface that is directly above where an earthquake originates. It is often the location that experiences the most severe shaking during an earthquake. Understanding the epicentre is crucial for assessing the potential damage in surrounding areas.

Focus: The focus, or hypocentre, is the actual location where the earthquake begins underground. This point is where the tectonic stresses are released, creating seismic waves. The depth of the focus can affect the intensity of the shaking felt at the surface.

Fault: A fault is a crack in the Earth’s crust where blocks of land have moved relative to one another. Earthquakes are often caused by the movement along faults due to tectonic forces. Studying faults helps geologists understand where earthquakes are likely to occur and their potential strength.