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When the level of damage and the strength of an earthquake are placed on a scatter graph they can often show no correlation. This essay will explore reasons for why this is and will also explain reasons where this is not the case. Many people would think that the stronger the earthquake is, the more damage it will cause. This is true for the less strong earthquakes under around 6 on the Richter scale. These earthquakes are quite frequent but no not cause much damage. The amount of damage depends on many various factors. Some of these are physical, and some are human activity. The physical factors include the geology and the depth of the focus. An example of this is the earthquake that happened in Mexico City. The Mexico City earthquake occurred on September 19 1985. It was about 7:30am when the city was hit by an earthquake measuring 8.1 on the Richter scale. The epicentre was located 50km off the coast of Mexico. The r