Character joint On Break function

I have a character joint with a break force of 1500, when the joint breaks, I'd like it to instantiate the effect where the character joint broke.

I already know how to instantiate the effect and the position, but I do not know how to make the script detect when a character joint has broke.

 public GameObject effect;
 
 void Update()
 {
 if (JointBreak == true then)
    {
      Instantiate(effect, transform.position, transform.rotation);
    }
 {