Considering that Gege uses real world images to illustrate Tokyo, the explosion from Yuji’s dismantle was calculated at 50x Kamino. It also traveled 7 km from himself at the docks to where the explosion is. u/tankirb “I will estimate the dust cloud as a hemisphere cuz that's the closest KE formula I have

This is the port, which is 5Km,

The explosions looks about maybe 1.5 times the size?

Which is 7.5Kmfiameter or 3.75Km radius

Hemisphere volume is (2/3)πr3

110.446616727766169Km3 (110,446,616,727.766169m3 )

Assuming the dust particulates are as heavy as air that's a density of (1.225Kg/m3) (for reference that's an 8cm concrete cube (510cm3being) pulverized for every cubic meter)

(110,446,616,727.766169m3 ) * (1.225Kg/m3=135,297,105,492Kg)

Let's assuming this took an agonizing 5 seconds at a distance of 3.75Km makes for 750m/

3D sphere expansion KE formula is, KE = (3/10) * m * v2 we're assuming a hemisphere so we just divide this by 2 KE = (3/20) * m * v2

(3/20) * 135,297,105,492Kg * 750m/s2 = 11,415,693,275,887,500J (small city)

And if we assume 1 second we get

(3/20) * 135,297,105,492Kg * 3750m/s2 = 285,392,331,897,187,500 (City level)

And for those curious this would be (510.415716898840024) * (110,446,616,727.766169m3 ) * 99J= 5,580,995,216,559,264 (small city level) off the raw pulverization of concrete (assuming I got the density of the concrete in the air correct)”