Tropical Depression

Repartition of Tropical depression in the world, we can see the most impacted area like Japan or the Gulf of Mexico. The map shows the past 150 years of hurricanes on earth until 2005. As you can see, the most powerful hurricanes of category five appear in the area around Japan. This is due to the high sea temperature in this region

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http://discovermagazine.com/2007/sep/map-where-do-hurricanes-do-the-most-damage/