Unique new map shows earthquake risks on humanity

Unique new map shows earthquake risks on humanity. A map, which provides a general representation of the risks of earthquakes on humanity using records from the past 4,000 years, has been produced by a geographer from the University of Sheffield. The new World Earthquake Intensity Map has been created on an equal-population map and allows us to understand the earthquake intensity in relation to today´s population distribution, giving an idea of where most people are at risk in regards to seismic activity. It provides a visualisation of all major earthquakes that have been complied in the Global Significant Earthquake Database. The database contains information on destructive earthquakes from 2150 BC to the present day that meet at least one of the following criteria: moderate damage (approximately $1 million or more), 10 or more deaths, magnitude 7.5 or greater, modified Mercalli intensity X or greater, or the earthquake generated a tsunami. 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.