Simple question regarding an animation

I have a robot enemy fully animated in Unity, but I have 1 problem. The robot has an animation where it loses a chunk of it’s head/limbs are severed under extremely strong impacts (Such as powerful gunshots etc). How would I properly detect hits to the head or limbs? (Ignore what a strong impact event might be I can do that myself, I just need to know how to detect hits to a specific part of the collider)

This enemy for now uses a large Capsule Collider if that helps

Instead of one large Capsule Collider have Colliders that fit the parts of the body (that you need information on). Like: Sphere for the head, box for torso, two capsules for each arm / leg. Like that the hit box always fits the actual state of the animation plus its easy to find out what was hit.