Is there any way to get info on where a collision occurred using a trigger event?
Not directly from the event, looking up the documentation for the onTriggerEnter event that fires on a collider set to a trigger when colliding you can see that it is passed only the collider of the object passing though the trigger zone. No collision or contact variable is passed. you should however be able to do a raycast between the trigger and the collider to obtain the contact vector using the event as the instigator