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Old 11-30-2018, 07:35 PM   #5
Bob C
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Join Date: May 2010
Location: So Cal
Posts: 8,711
Default Re: 7.0 Earthquake in Anchorage Alaska

Found this on Wikipedia.


Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude; in terms of energy, each whole number increase corresponds to an increase of about 31.6 times the amount of energy released, and each increase of 0.2 corresponds to approximately a doubling of the energy released.
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