The Horizontal Movement of a Point That Is K Kilometers

Short Answer

The horizontal movement of a point that is k kilometers away from an earthquake's fault line can be estimated with

where M is the movement of the point in meters, f is the total horizontal displacement occurring along the fault line, k is the distance of the point from the fault line, and d is the depth in kilometers of the focal point of the earthquake. If an earthquake produced a displacement, f, of 2.3 meters and the depth of the focal point was 2.6 kilometers, then what is the movement, M , of a point that is 8 kilometers from the fault line? Round to 2 decimal places.