I looked into gremmy's meteor calc. And I have found some minir issues. For the most part the calc is fine.
It's about gremmy's ap. There there multiple angle to this.
1. Gremmy's ap through impact of meterite.
2. Energy needed to create the meteorite.
Both are different things.
No 2 requires popular mass energy conversion formula of einstein.
While no 1 being used, earthquake formula seems more feasible and practical than kinetic energy, cause that's how the destruction happens and we are calculating his AP through meteorite's destruction capability in actuality. Kinetic energy is more feasible method for meteor destruction.
Here,
vsbattles.fandom.com