Intro[]
Because of the many unknowns, I was advised that it's safer to utilize KE for the shaking of the planet.
Math[]
0.215 to 0.401 m/s = 0.307 m/s average
1/2 * 2.9881781e30 * 0.307^2 = 1.408164e+29 joules = 33.6 Exatons
New Planet Revised Calc[]
1/2 * 1.1308416e31 * (0.2)^2 = 2.2616832e+29 joules = 54.055 Exatons
Result[]
One Piece Planet Mag 6 Worldwide Earthquake: 1.408164e+29 joules = 33.6 Exatons UPDATED 2.2616832e+29 joules = 54.055 Exatons (Moon level)