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    Question

    Consider the following statement about earthquake

    – I)  Intensity of earthquakes is measured on the Mercalli Scale. II)  Magnitude of earthquake depends directly upon Amplitude of an earthquake wave. III)  Every integer on Richter Scale shows a 50 times increase in energy released Which of the statements are true?
    A I & II Correct Answer Incorrect Answer
    B II & III Correct Answer Incorrect Answer
    C I, II & III Correct Answer Incorrect Answer
    D All Correct Answer Incorrect Answer

    Solution

    The intensity of an earthquake is measured on two scales (i) Richter scale (ii) Mercalli scale. The intensity of an earthquake is the measurement of energy released. The Richter scale has a shaking amplitude 10 times that of the previous integer and shows an increase of 32 times in energy. Energy equal to 6 ounces of TNT is released by an earthquake of a magnitude of 1. 

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