EARTH SCIENCE
EARTHQUAKES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How much bigger is a magnitude 8 earthquake compared to magnitude 6 quake on the Richter Scale?
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2 times bigger
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20 times bigger
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48 times bigger
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100 times bigger
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Explanation:
Detailed explanation-1: -A magnitude 8 releases 1, 000 times more energy than a magnitude 6, but it releases that energy over a larger area and for a longer time, Jones said.
Detailed explanation-2: -While each whole number increase in magnitude represents a tenfold increase in the measured amplitude, it represents an 32 times more energy release.
Detailed explanation-3: -Final example: comparing the magnitude-9.0 earthquake in Japan with the magnitude-6.3 quake that struck New Zealand in February. The difference in magnitudes is 2.7, so the difference in shaking is 10^2.7, or just over 500 times as big-a figure you’ve probably seen.
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