How do you distinguish between a magician playing a trick and a man being subject to a miracle by the divine?

For example, let's say you see a video, or a photograph or read a story where a man supposedly jogs across Lake Michigan from Chicago to Muskegon across the liquid water in bare feet.

What is your methodology to tell if this phenomenon is either a trick by a magician with an unknown physical, non-supernatural explanation or if it is a genuine miracle where the divine allowed the man to defy how nature normally works?