Using the properties of logarithms, it is found that the earthquake in Japan in 2011 was 12.92 times more severe.
<h3>How to find the ratios of the intensity of earthquakes?</h3>
As given in the problem, the intensities of the earthquakes are given by logarithms of base 10. Then, supposing that the intensities are , the ratio of the intensities is given by:
The intensities for this problem are , hence the ratio is:
The earthquake in Japan in 2011 was 12.92 times more severe.
More can be learned about logarithms at brainly.com/question/20719486
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