Prevent trigget to trigget through collider

Hello community! Prehistory:

I have different kind of magic in my game, for example meteor. Simply when it hits ground, it creates sphere trigger to push everyone in different directions and deal damage. Players have semi spherical shields (aslo magic) with collider. So here is question - how do I write a script so this meteor's trigget wouldn't trigget if it goes through player's shield collider, but could push him from behind? Thanks in advance.

-Paul