Introduction[]
So Ichigo and friends break into the Seireitei, and it turns out that the impact shakes the entire Seireitei, so I'mma calc the yield of this.
Calculation[]
The Seireitei's currently accepted radius is 785.45 km. I'll use 4 and 5 as the magnitudes as a low-end and a high-end, since it noticeably shakes all of Seireitei and is felt by people outdoors.
Low-End:
Magnitude at Distance = 4
Richter Magnitude = 4 + 6.399 + 1.66*log10((785.45/110)*((2*π)/360)) = 8.9
Yield = 10^(1.5 * 8.9 + 4.8) = 1.41253754e+18 Joules
High-End:
Magnitude at Distance = 5
Richter Magnitude = 5 + 6.399 + 1.66*log10((785.45/110)*((2*π)/360)) = 9.9
Yield = 10^(1.5 * 9.9 + 4.8) = 4.46683592e+19 Joules
Final Result[]
Cannonball Shakes the Seireitei:
- Low-End: 337.6 megatons; Mountain level (7-A)
- High-End: 10.68 gigatons; Island level (6-C)