Yeaaah, because if u want things to blow up more,
•u add more flames (put them green)
•Then u enlarge the explode radius toooooo
Uhm
Prob 500K blocks (if u count depth, length and height together)
Then add a white screen effect to make things more immersive (with a sound effects like bips)
Also add an effect that put magma everywhere randomly around the hole (preferably of the suze of a carpet) (but it's more complicated to do)
Then just designs the bomb