Explosion speed at distance

[Arceus0x]

This amazing video exists showing us an amazing explosion speed. AFAIK we don't use the 4km/s speed for explosions if something is more than a foot away from it since it slows down but this explosion seems significantly bigger and yet it maintains speed.
So i've been thinking, why not find more vids like these and actually get the speed of different explosives?

 

[Arceus0x]

Just to give an example,

The minor scale explosion takes about 2-3 frames to reach the fireball stage. It is significantly bigger than the iron dome used to contain it. The iron dome's size could be calculated or found through sources and we could easily get a notable result.

 

[Arceus0x]

Here are some estimates I could place into a blog later with all the scans

man in the vid is 37px, dome is 654px, assuming the man is 177cm as the average american height we get a length of 31.2759 meters for the dome.
In the video the dome is 93px
the explosion is 910px
9.784x difference
9.784*31.2759=306.0034 meters
half is 153.0017
This happened in exactly 2 frames.
(1/24)*2= 0.083
153.0017/0.083 = 1843.3939 m/s

I think this clearly shows that we need to reconsider the explosion speeds in our current calcs and such.

 

[TheRustyOne]

This calculator is what we use to calculate explosion speed.

I do not understand this post, you haven't even explained what your issue with the current method is.

Note: I cannot comment on methods I'm unfamiliar with.

 

[Arceus0x]

This calculator is what we use to calculate explosion speed.

I do not understand this post, you haven't even explained what your issue with the current method is.

Note: I cannot comment on methods I'm unfamiliar with.

I might've confused some stuff, I was sleepy af when I made this. It can be closed for now