Where is a flame before it is lighted, and where is it after it goes out?
God already created hell for Satan and his followers before creating humankind. God, through the Bible, in quite a few places clearly and explicitly teaches us that hell is a real place to which the wicked and unbelieving are sent after death. "23 for fall have sinned and fall short of the glory of God," Romans 3:23 To answer your questions, the fire has already been lit and will burn for all eternity.
I have a little story. I was listening to a debate between Lawrence Krauss, who was a physics Professor at Arizona State University, vs William Lane Craig, theologist. The question to Krauss, who is an atheist, was what would change his mind about God being real. He said if God had the stars align to spell out, "I'm here" or something to that effect, then he would have to reassess.
About a week or so later, an atheist made the front page because he said something that profoundly struck a chord with me. He referred to the debate and said that the stars aligning would not be good enough because the people (atheists/agnostics) on the other side of the world would not be able to see it. I think he meant every single atheist/agnostic would have to believe from the past, present, and future. That's some convincing God would have to do. Later, I realized that God had already put into place the means to do this. Hell. Pain and suffering in hell would be a great persuader even if they rebel.
Persuading to what end?
C'mon, are you that dense? I thought it was the greatest point an atheist ever made. That's what moved me. I think he got his comments published on the front page of the paper.
Anyway, this should answer the OP's question.
You stated that hell would be a great persuader. Persuading to what end? That seems akin to killing someone to teach them a lesson.