Is the sudden result of a sudden release of energy in the earth’s crust that creates seismic waves.
Is the point on the earth’s surface that is directly above the focus, the point where an earthquake or an underground explosion originates.
or focus is the point of the fault where rupture occurs and the location from which seismic waves are released.
Are instruments that measure motions of the ground, including those seismic waves generated by earthquakes, volcanic eruption, and other seismic sources.
produces due to earthquake divided into two groups: body waves and surface waves.
is a break or fracture between two blocks of rocks in response to stress.