EARTH QUAKES Presentation by AJA.V.P Prepared by SARATH BABU.M.G
Introduction <ul><li>Any sudden disturbance below the earth surface prodce vibration or shaking in he crust. </li></ul><ul...
Earth Quakes Origin <ul><li>The place origin of an earthquake inside the earth is called its  Focus </li></ul><ul><li>The ...
Seismic waves <ul><li>When earthquakes occur, waves of energy  SEISMIC WAVES  travel outward from the earthquake focus  </...
Major Seismic waves
Seismology <ul><li>The earth quakes are studied by a a special of science is known as “ Seismology ”. </li></ul><ul><li>Th...
EFFECTS
Effects <ul><li>Formation of cracks or fissures in the region of epicenter </li></ul>
Effects <ul><li>Earth quake cause landslides </li></ul>
Effects <ul><li>Seismic sea waves (TUSNAMIS) </li></ul>
Effects <ul><li>Damage to human life and structures </li></ul>
Effects <ul><li>Faults, thrust and folds  </li></ul>
Other Effects   <ul><li>More devastating fires </li></ul><ul><li>Change in surface drainage and underground circulation of...
Distribution
Distribution <ul><li>About 60 % of all earthquakes are observed in the vast region of the pacific ocean as a  ‘Ring of Fir...
Distribution <ul><li>Some of the earth quakes in India are : </li></ul><ul><li>Kachchh earthquake (1819) </li></ul><ul><li...
Conclusion
Conclusion <ul><li>More seismic stations can be established for issuing warning to the people of coming earthquakes. Somet...
Questions
THANK YOU
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Earth Quake

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Intoduction to Earthquakes, Effects and Distribution

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  • Transcript of "Earth Quake"

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