NATURAL DISASTERS<br />Are weprepared?<br />
Whatis a Natural Disaster?<br />What’sthedifferencebetween natural disaster and natural hazard?<br />Can wepredictthem?<br...
They are the shaking, rolling or sudden shock of the earth’s surface. <br />They happen along &quot;fault lines&quot; in t...
It happens during heavy rains, when rivers overflow, when ocean waves come onshore, when snow melts too fast or when dams ...
Hurricanes<br />They are severe tropical storms that form in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, a...
Tornadoes<br />They are nature’s most violent storms.<br />They come from powerful thunderstorms and appear as rotating, f...
Tsunami<br />It is a series of huge waves that happen after an undersea disturbance, such as an earthquake or volcano erup...
Volcano<br />It is a mountain that opens downward to a pool of molten rock below the surface of the earth<br />When pressu...
Wildfire<br />They are a danger for people who live in forest, prairies or wooded areas.<br /> These fires are sometimes s...
Drought<br />It is an extended period of months or years when a region notes a deficiency in its water supply. <br />Gener...
Which are more likely to occur in your town?<br />antoniaromanblog@blogspot.com<br />
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Natural Disasters

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Natural Disasters

  1. 1. NATURAL DISASTERS<br />Are weprepared?<br />
  2. 2. Whatis a Natural Disaster?<br />What’sthedifferencebetween natural disaster and natural hazard?<br />Can wepredictthem?<br />What can we do topreventdisaster?<br />Are we in danger?<br />
  3. 3. They are the shaking, rolling or sudden shock of the earth’s surface. <br />They happen along &quot;fault lines&quot; in the earth’s crust. <br />They can be felt over large areas although they usually last less than one minute. <br />They cannot be predicted -- although scientists are working on it! <br />Most of the time, you will notice it by the gentle shaking of the ground. <br />Its intensity can be measured. One measurement is called the Richter scale.<br />Earthquakes<br />
  4. 4. It happens during heavy rains, when rivers overflow, when ocean waves come onshore, when snow melts too fast or when dams break. <br />It may be only a few centimetres of water or it may cover a house to the rooftop. <br />When they happen very quickly are called flashfloods. <br />It is the most common of all natural hazards<br />Floods<br />
  5. 5. Hurricanes<br />They are severe tropical storms that form in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean. <br />They rotate in a counter-clockwise direction around an &quot;eye.&quot; <br />They have winds at least 74 miles per hour. When they come onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars.<br />
  6. 6. Tornadoes<br />They are nature’s most violent storms.<br />They come from powerful thunderstorms and appear as rotating, funnel-shaped clouds. <br />They cause damage when they touch down on the ground.<br />The ability to predict tornadoes is limited<br />
  7. 7. Tsunami<br />It is a series of huge waves that happen after an undersea disturbance, such as an earthquake or volcano eruption.<br />The waves may travel in the open sea as fast as 450 miles per hour<br />They can cause a lot of destruction on the shore.<br />
  8. 8. Volcano<br />It is a mountain that opens downward to a pool of molten rock below the surface of the earth<br />When pressure builds up, eruptions occur<br />Gases and rock shoot up through the opening and spill over or fill the air with lava fragments<br />
  9. 9. Wildfire<br />They are a danger for people who live in forest, prairies or wooded areas.<br /> These fires are sometimes started by lightning or by accident. <br />They can move very fast and burn many acres.<br />
  10. 10. Drought<br />It is an extended period of months or years when a region notes a deficiency in its water supply. <br />Generally, this occurs when a region receives consistently below average precipitation.<br /> It can have a substantial impact on the ecosystem and agriculture of the affected region.<br />
  11. 11. Which are more likely to occur in your town?<br />antoniaromanblog@blogspot.com<br />

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