<human>:  Explain the difference between a hurricane and a tornado.
<bot>: A hurricane is a tropical cyclone that has sustained winds of over 74 mph and includes strong winds, rain, and storm surge that can cause significant damage. Hurricanes are typically located over large bodies of water and move in a counter-clockwise direction. Tornadoes are a rapidly rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud. They usually have a diameter of less than 400 metres and a lifespan of just a few minutes. Tornadoes tend to take place during thunderstorms and can cause major destruction, with wind speeds of up to 300 mph.