This map, from University of Sheffield, is a visulization of the risks of earthquakes on humanity using records from the past 4,000 years. A The map uses data ffrom database containing information on earthquakes from 2150 BC to the present day that meet at least one of the following criteria: moderate damage, 10 or more deaths, magnitude 7.5 or greater, or the earthquake generated a tsunami.
More technical information explaining what you are looking at: "The map was created using these records by calculating `kernel density´, an equation that shows the probability distribution of earthquakes, in order to visualise the areas most at risk from 2150 BC to the present day. The new earthquake map was then created by transforming the data in a way that highlights populated areas whilst eliminating depopulated regions. "
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| Credit: Benjamin Hennig |
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