==Feat==
Destroyed area
This calc was requested by Weekly
So in one of the Godzilla movies a bunch of nukes were fired and they destroyed a rather significant ammount of land, i will however calc the yield of one nuke by calcing the the energy needed to destroy one of those craters
Calc[]
I will use a different scan for scaling as i dont see any significant point of reference in the previous scan.
Different scan in question
Since i see more or less the whole US i will first decide on a point of reference, i decided to scale it from Lake Erie as it can be clearly seen in the scan
To get the widht of Lake Erie i will use this website as it allows me to measure distances on the world map
93.7KM i got for Lake Erie
I got 93.7 KM for width of Lake Erie
Now i will scale of the second scan.
Lake Erie = 28 px
93.7 / 28 = 3.34642 km per px
I have measured 4 different craters the biggest one is 8 px, second biggest is 6 px and two last craters are 5 px so for the sake of lowballing lets go with the 5 px
Actual scaling
craters.
Crater diameter = 5 px or 16.7321 km
Crater radius = 8.36605 km or 836605 cm
Craters look like half spheres to me
Volume = 4/3 X pi X 836605^3 = 2.4527313198772E18 cm3
2.4527313198772E18 divided by 2 as its only a half sphere = 1.226365659939E18 cm3
Since there is no leftover land i will use pulverization
1.226365659939E18 x 214.35 = 2.628714792079E20 Island level+ (62.82 gigatons of tnt)
SoldierBlues variation[]
Parameters used: 1000 km distance from impact (doesn't matter what distance you use as it does not influence the end yield), 1000 m projectile diameter, 17.5 km/s projectile velocity, 90 degree impact angle (I recommend using this as these were caused by nuclear detonations and not natural impactors), 3000 kg/m^3 impactor density, sedimentary rock target type.
Impact energy: 57 Gigatons
Crater diameter: 16.7 km
Is still 6-C (Island level+)