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Natural Disasters

Natural Disasters. By: Seth Hunter. Tsunami.

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Natural Disasters

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  1. Natural Disasters By: Seth Hunter

  2. Tsunami A tsunami is a series of waves with long wavelengths. Tsunami’s are caused by earthquakes, landslides, volcanic eruptions, explosions, and meteorites. Tsunami’s can have wavelengths from 10 to 500 km that can last for an hour. Last year we had a horrible tsunami in Japan.

  3. Hurricane A hurricane is a powerful storm system with a large low pressure that produce strong winds and heavy rainfall. Hurricanes form when a colder, drier front meets a warmer, damper front they create friction causing the Earth to shake. Hurricanes are the most destructive natural weather occurrences on Earth. Hurricanes form by All hurricanes begin in warm moist temperature and over tropical ocean waters.

  4. Tornado A tornado is a powerful column of winds spiraling around a center of low atmospheric pressure. Most tornadoes form from thunderstorms and when warm air meets cold air they start spinning. A tornado can sometimes form very fast from a minute or less. The word “tornado” comes from the Latin word tonarewhich means to thunder. Tornadoes are often called twisters or cyclones.

  5. Flood A flood occurs when water overflows land that is usually dry. Floods can be caused by river and streams overflowing their banks, continuous rain, a ruptured damn, and rapid ice melting in the mountains. Coastal floods can be caused by a large storm or a tsunami. Floods may just be water but they are powerful enough to pick up and carry away bridges, houses, trees, and cars. An hundred-year flood is a flood that is expected to happen only once a year.

  6. Drought Droughts are caused by a lack of rain over a long period of time which will cause plants and animals to die. The problem with droughts is it kills ecosystems because if a plant dies the animal that eats it will die and so on. Most droughts occur during the summer because the weather is hot and water is quickly evaporated. Droughts also effects the money farmers make because their crops will die with lack of water and the farmer will not get paid.

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