Hazards 1

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  • Start with Google Earth KML then news. Define together with key words.
  • Hazards 1

    1. 1. Natural Hazards
    2. 2. A natural disaster is the effect of a natural hazard (e.g., flood, tornado, hurricane, volcanic eruption, earthquake, or landslide). It leads to financial, environmental or human losses. What is a ‘natural disaster’?
    3. 3. Types of hazard <ul><li>Tectonic (earthquakes) </li></ul><ul><li>Climatic (hurricanes/ tropical storms) </li></ul><ul><li>LEDC and MEDC case studies </li></ul><ul><li>Important to understand how the impact & management of the hazard differs between countries </li></ul>
    4. 4. The distribution of natural hazards <ul><li>Drought </li></ul><ul><li>Volcanoes </li></ul><ul><li>Earthquakes </li></ul><ul><li>Tropical Storms (hurricanes) </li></ul><ul><li>Match the type of hazard to the correct map & write a justification of why you believe it is this type of hazard. </li></ul><ul><li>Make a link to the hazard’s distribution. </li></ul><ul><li>Use an atlas if needed. </li></ul>
    5. 5. Patterns of distribution <ul><li>The distribution of a natural hazard is dependent on the natural processes that cause them: </li></ul>Volcanoes Earthquakes Tropical Storms Drought Plate tectonics Climatic
    6. 6. Effects of hazards <ul><li>Primary effects: </li></ul><ul><li>Immediate effects caused directly by the hazard, e.g. crushed by falling building, drowning in tsunami, etc. </li></ul><ul><li>Secondary effects: </li></ul><ul><li>Caused by subsequent problems triggered by original hazard, e.g. radiation sickness from nuclear power plant explosion in Japan, disease from dirty water in Haiti, etc. </li></ul>
    7. 7. Impacts <ul><li>IMPORTANT: </li></ul><ul><li>The severity of the impact of a natural disaster depends on the level of economic development </li></ul><ul><li>MEDCs are likely to have more ………. but less ……………. </li></ul><ul><li>Whereas LEDCs are likely to have more ………… but less ……………… </li></ul>
    8. 8. Enquiry <ul><li>Mark on the tropics + the equator on your map. </li></ul><ul><li>Colour code & annotate the map to show the distribution of these hazards: </li></ul><ul><li>Volcanoes Earthquakes </li></ul><ul><li>Tropical Storms Drought </li></ul><ul><li>3. Describe the distribution of each type of natural hazard on the A3 world map. </li></ul><ul><li>4. Justify why these distributions exist. You may use an atlas / netbook to help. Describe the patterns (e.g. narrow bands, etc.) </li></ul>
    9. 9. Distribution of hazards : link to causes <ul><li>Use the textbooks </li></ul><ul><li>Create mind-maps for each hazard to describe basic causes & describe the distributions of where they occur </li></ul><ul><li>Justify and explain why these distributions exist. You may use an atlas / netbook to help. </li></ul><ul><li>E.g. narrow bands along edge of continents, within the tropics, etc. . </li></ul>
    10. 11. <ul><li>Worldmapper </li></ul><ul><li>Killed in Earthquakes </li></ul><ul><li>Killed in Volcanoes </li></ul><ul><li>Killed by drought </li></ul><ul><li>Killed by storms </li></ul><ul><li>Links </li></ul><ul><li>Killed in Earthquakes </li></ul><ul><li>Killed in Volcanoes </li></ul><ul><li>Killed by drought </li></ul><ul><li>Killed by storms </li></ul><ul><li>KML Starter </li></ul><ul><li>http://earthquake.usgs.gov/earthquakes/catalogs/ </li></ul>
    11. 12. Exam Q
    12. 13. <ul><li>Name the scale, which magnitude of an earthquake [1] </li></ul><ul><li>Describe the distribution of earthquakes shown in Fig.8 [4] </li></ul><ul><li>How are the Pacific Plate and the North American Plate (shown in Fig.8) moving in relation to each other? [1] </li></ul>

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