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Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
Earth Quake
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Earth Quake

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Intoduction to Earthquakes, Effects and Distribution

Intoduction to Earthquakes, Effects and Distribution

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  • Mirror Worlds: When software puts the universe in a shoebox, how it will happen and what it will mean (David Gelinger, 2003) - the Geospatial Web
  • Transcript

    • 1. EARTH QUAKES Presentation by AJA.V.P Prepared by SARATH BABU.M.G
    • 2. Introduction
      • Any sudden disturbance below the earth surface prodce vibration or shaking in he crust.
      • This sudden movement of the ground is called Earth Quake
    • 3. Earth Quakes Origin
      • The place origin of an earthquake inside the earth is called its Focus
      • The point on the earth’s surface vertically above the focus is called the Epicenter
    • 4. Seismic waves
      • When earthquakes occur, waves of energy SEISMIC WAVES travel outward from the earthquake focus
    • 5. Major Seismic waves
    • 6. Seismology
      • The earth quakes are studied by a a special of science is known as “ Seismology ”.
      • The word ‘seismology’ derived from the Greek word ‘ seismos ’ meaning ‘ earth quake ’.
      • The instrument recording the shock waves is called the Seismograph .
      • The instrument which used to measure the intensity of earthquake is known as ‘ Richer Scale’
    • 7. EFFECTS
    • 8. Effects
      • Formation of cracks or fissures in the region of epicenter
    • 9. Effects
      • Earth quake cause landslides
    • 10. Effects
      • Seismic sea waves (TUSNAMIS)
    • 11. Effects
      • Damage to human life and structures
    • 12. Effects
      • Faults, thrust and folds
    • 13. Other Effects
      • More devastating fires
      • Change in surface drainage and underground circulation of water
      • Depression forming lakes
    • 14. Distribution
    • 15. Distribution
      • About 60 % of all earthquakes are observed in the vast region of the pacific ocean as a ‘Ring of Fire’ .
      • Major and Minor earthquakes are in Chile, California, Alaska, Japan, Philippines and New Zealand.
    • 16. Distribution
      • Some of the earth quakes in India are :
      • Kachchh earthquake (1819)
      • Assam earthquake (1897)
      • Kangra earthquake (1905)
      • Bihar earthquake (1934)
      • Assam earthquake (1950)
      • Latur earthquake(1993)
      • Kashmir earth quake (2005 )
    • 17. Conclusion
    • 18. Conclusion
      • More seismic stations can be established for issuing warning to the people of coming earthquakes. Sometimes our observations , like sudden changes in atmospheric conditions and abnormal behaviour of animals can help us to forecast the arrival of an earth quake.
    • 19. Questions
    • 20. THANK YOU

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