Just gonna make up a random number for the yellow line bc I don’t feel like pixel scaling it, gonna say it’s half of the crater’s radius (300m).
Volume= pie(R^2-r^2)H
R being the outer radius (yellow line up to the center of the crater)
r being the radius of the hollow.
volume= pie(757^2-457^2)325=371,853,620.4m^3.
Density of fog is 1.2 kg/m^3
371,853,620.4x1.2=446,224,344.48kg.
Distance dispersed is the yellow line (300m) with time frame being 4 frames (0.16 sec)
Speed is 1,800m/s.
KE=12*446,224,344.48*1,800^2=1.735e16 joules
Small city. Obv the number can go up or down with proper measurements.
You already got most of the work done, just got a little more work to do so if you down for it that’s how I’d personally calc it.