ill be calculating how powerful the Intercontinental missile explosion was.

the explosion happens 50 kilometers from Japan. the ocean depth at this distance is 1 km.

crater

161px=1000 meters

1px=6.2 meters

crater diameter=442 pixels=2740meters

crater radius=1378meters

crater depth=224px=1388meters

put this in to an ellipsoid calculator and we get 11040189058.525 meters^3. divide that by two for the volume of the crater and we get 5520094529 meters^3.

this looks to be vaporization so 5520094529000000 cm^3 x 25700= 1.4x10^20 joules.

water displacement and vaporization

from what i have seen its agreed that this is 50% vaporization and 50% displacement.

Vaporized/Displaced water Depth = 1000 meters

Vaporized/Displaced water Radius = 1496.4+620=2116.4 meters.

putting this in to a cylinder calculator and we get

volume= 14071661467.07 meters^3

half of it was vaporized so 7035830734000000cm^3x2575=1.8x10^19 joules

ill assume that the time frame was 5 seconds so

2116.4/5=423.28 m/s

water weight = 7035830734m^3x977kg = 6874006627118kg

putting this in to a kinetic energy calculator and we get 6.1x10^17 joules.

explosion

S&S is 1.93 meters tall. her giant form is 1000 times bigger than her

1.93 x 1000 = 1930 meters

The head to body ratio is about 1 to 8 for adults

1930/8 = 241.25 meters

13px=241.25 meters

1px=18.5 meters

explosion radius = 635x18.5 = 11747.5 meters

Y = [R^3*((27136*P+8649)^(1/2)/13568-93/13568)^2]*4.184*10^9

Y is joules, R is radius in meters, and P is pressure of the shockwave in bars, the standard pressure is 1.37895 bars.

Y = [11747.5^3*((27136*1.37895+8649)^(1/2)/13568-93/13568)^2]*4.184*10^9=5.4^17 joules

1.4x10^20+1.8x10^19+6.1x10^17+5.4^17 = 1.5x10^20 joules or 35 gigatons of tnt aka island level.

MHA top tiers would scale to this since endeavor could vaporize the body of a high end nomu but this explosion couldn't.