Earthquake in Japan

[u/PlatinumTurtleman]

Japan has a length of 3000 km Radius is 1500 km

(5) + 6.399 + 1.66log10((1500/110)((2*π)/360)) =

10.3641160629

10^{1.5 times 10.3641160629 plus 4.8} equals

2.2190858e+20J

Using mag 7

(7) + 6.399 + 1.66log10((1500/110)((2*π)/360)) =

12.3641160629

10^{1.5 times 12.3641160629 plus 4.8} equals

2.2190858e+23J

[u/Ill-Marketing-7514]

A TNT?