The Richter Scale Reading for an Earthquake Measures Its Intensity

question 277

Multiple Choice

The Richter scale reading for an earthquake measures its intensity (as a multiple of some minimum intensity used for comparison) . The intensity I corresponding to a Richter scale reading R is given by . An earthquake occurred near San Francisco in 1923 that measured 6.9; another earthquake occurred in 1947 that measured 7.75. Calculate the ratio of these intensities (larger to smaller) . Round your answer to six decimal places. ​

• A)0.141254
• B)1.123188
• C)13.279704
• D)7.079458
• E)0.010162

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