Natural Disasters

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Natural Disasters

  1. 1. THE DISASTERS OF WORLD NATURAL DISASTERS
  2. 2. NATURAL DISASTER <ul><li>A natural disaster is the effect of a natural hazard like flood, tornado, hurricane, volcanic eruption or earthquake. </li></ul>
  3. 3. FLOOD <ul><li>A flood is an overflow of water. The EU Floods directive defines a flood as a temporary covering by water of land not normally covered by water. Flooding may result from the volume of water within a body of water, such as a river, which overflows. </li></ul>
  4. 4. TYPES OF FLOOD <ul><li>Riverine </li></ul><ul><li>Estuarine </li></ul><ul><li>Coastal </li></ul><ul><li>Catastrophic </li></ul><ul><li>Muddy </li></ul>
  5. 5. DEADLIEST FLOODS Death Toll Event Location Date 2,500,000 – 3,700,000 China floods China 1931 900,000 – 2,000,000 Yellow River flood China 1887 500,000 – 700,000 Yellow River flood China 1938
  6. 6. TORNADO <ul><li>A tornado is a violent, dangerous, rotating column of air that is in contact with the surface of the earth and a cumulonimbus cloud. </li></ul>
  7. 7. TYPES OF TORNADO <ul><li>Multiple vortex </li></ul><ul><li>Waterspout </li></ul><ul><li>Landspout </li></ul>
  8. 8. DEADLIEST TORNADOES Death toll Event Location Date 1,300 The Daulatpur – Salturia Tornado Bangladesh 1989 923 East Pakistan Tornado Pakistan 1969 695 The Tri – State Tornado United States 1925
  9. 9. HURRICANE <ul><li>A hurricane is a tropical cyclone and the tropical cyclone is a storm system characterized by a large low – pressure center and numerous thunderstorms that produce strong winds and heavy rain. </li></ul>
  10. 10. TYPES OF HURRICANES <ul><li>Tropical depression </li></ul><ul><li>Tropical storm </li></ul><ul><li>Typhoon </li></ul>
  11. 11. DEADLIEST HURRICANES Death toll Event Location Date 500,000 Bhola cyclone Pakistan 1970 300,000 Indian cyclone India 1839 300,000 Calcutta cyclone India 1737
  12. 12. VOLCANIC ERUPTION <ul><li>During a volcanic eruption lava, tephra, and various gases are expelled from a volcanic vent or fissure. </li></ul>
  13. 13. TYPES OF VOLCANIC ERUPTION <ul><li>Magmatic eruption </li></ul><ul><li>Phreatomagmatic eruption </li></ul><ul><li>Phreatic eruption </li></ul>
  14. 14. DEADLIEST VOLCANIC ERUPTIONS Death toll Event Location Date 92,000 Mount Tambora Indonesia 1815 36,000 Krakatoa Indonesia 1883 33,000 Mount Vesuvius Italy 79 AD
  15. 15. EARTHQUAKE <ul><li>An earthquake is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. </li></ul>
  16. 16. DEADLIEST EARTHQUAKES Death toll Event Location Date 830,000 Shaanxi earthquake China 1556 242,419 – 779,000 Tangshan earthquake China 1976 316,000 + Haiti earthquake Haiti 2010
  17. 17. Project was made by Toma Mikalauskaite 3 D

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