Natural disasters

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Natural disasters

  1. 1. Natural Disasters
  2. 2. What is a Natural Disaster?A natural disaster is an event caused bynatural forces of nature that has a largeeffect on the human population.
  3. 3. MeteorologicalNatural disasters of the atmosphere
  4. 4. Cyclone, Typhoon, Tornado, Hurricane… What’s the difference??
  5. 5. Cyclone, Typhoon, Hurricane Define: A tropical storm that forms over an ocean The difference is WHERE they form Cyclone: Asia, South of the Equator Typhoon: Asia, North of the Equator Hurricane: Atlantic Ocean & East Coast of North America
  6. 6. Tropical Storm Map
  7. 7. Test Your KnowledgeWrite these down:What wind storm occurs in these countries:United States:Australia:India:Japan:Canada:
  8. 8. Cyclone, Typhoon, Hurricane(Video)Characteristics: Hard rain, flooding, high windsDuration: 8 – 24 hours of full forceWhere: East Coast, USA
  9. 9. Tropical Storm Paths
  10. 10. East Coast, USA
  11. 11. Let’s see what they can do
  12. 12. Wait, what’s a Tornado?? Isn’t that the same??
  13. 13. TornadoA Tornado forms over land.Also called a TwisterOccurs in “Tornado Alley”in the USA
  14. 14. Tornado Alley “Tornado Alley” is the area where Tornados form the most. It includes the states of: Texas, Oklahoma, Kansas, Nebraska, and South Dakota
  15. 15. Tornado Alley How and why do they occur? (Video) The middle states are located between the warm air of the Gulf of Mexico and the cold air of the Pacific Ocean from Canada.
  16. 16. Extreme Weather, USA
  17. 17. Let’s see what they can do
  18. 18. Tornados vs. Hurricanes
  19. 19. GeologicalDisastersNatural disasters of theland
  20. 20. Earthquake?What’s that??
  21. 21. EarthquakesA sudden shaking of the groundas a result of movements of theearth’s tectonic plates
  22. 22. How do they happen?The earth’s surface rests on movingsheets of crust called tectonic platesThese plates move VERY slowly
  23. 23. How do they happen?When the plates collide, they create mountainsWhen the plates separate, they form volcanoes
  24. 24. Slides3 Types: Mudslide (Mud), Rockslide (Rocks), Avalanche(Snow)Characteristics: Accelerating materials in large amountsCause: Pressure on the external surface
  25. 25. Hydrological DisastersNatural disasters of the water

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