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Mar 15

A Richter 9 is 1000 x more energy released than Richter 7.
However, the swing amplitude is only 100x bigger. People get confused on the distinction.

(energy ratio) = (amplitude ratio)^3/2
amplitude ratio is 10^(difference of the Richter readings).

No quake at Richter 10 ever happened and it is alleged to be planet destroying. It's only about 32x more energy than the Japan quake.


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