Going to start with current verse stuff.
Firstly I dont know why Gojo's crater was calced. The first obvious issue is that it was done with spatial hax not power. The second one is that it is obviously not the whole crater.
I hope I dont have to explain why anyone scaling above Jogo's Domain expansion is one of the wackest uses of scaling I have ever seen. The calc in itself also has issues. There is 0 proof that the hole at the top is the same diameter as the space between Jogo and Gojo. As a volcano should be it is likely that the hole is actually smaller. The "mountain" itself is not mountain sized at all. There is 0 proof of that being the case. It is simply called an iron mountain. There is more to this with the processes of calculation in the first place but I dont think that matters compared to the other core points.
Third the tropical island calc. We know that despite the view Dagon's domain actually does not go that far out and there is a border to it. Meaning that mountains in the background arent real. This is again ignoring that domain scaling is terrible.
Lastly both meteor calcs. There is 0 proof that the meteor is moving at the speeds it is calced at. And before you mention ablation, Jogo is literally a lava monster of course his meteor has fire streaming out of it. He simply summoned it in place as a giant flaming meteor. The magnitude chosen for the earthquake calc is off. That is for the low end, it is obvious why the high-end can not be used and I dont know what made you think it made sense. Regardless magnitude 5 is completely wrong.
Based on the images
here, and based on the
chart. The intensity at that distance would be a IV at most. Which is also a magnitude 4 at most but based on no actual damage at that distance intensity III or magnitude 3 at most is what I see.
Finally yet again no one scales to the meteor. No one tanked it and in fact Sukuna said he was going to be damaged by it if the meteor had hit. I would get round to the new calcs too soon.