By Alvin Alexander. Last updated: September 21, 2016
A Facebook post from September 21, 2010: “I broke out my slide rule, cranked out some logarithms, and learned the 1964 earthquake was over 1,000,000 times more powerful than yesterday's 4.9. I can’t even fathom that number (no tsunami pun intended). Oh, and reporters quoting the use of the ‘Richter Scale’ are just using a convenient lie.” (See Moment Magnitude Scale.)
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