Two people survived it (or at least, they have survived it so far) by being at the tail of the plane as it separated on impact and avoided the fireball, I imagine.
The AP article[0] list the survivors as crew members(flight attendants). By looking at the main pic in the article with only the tail section as looking anything like it was once a plane, I am guessing they were saved from the brunt of it by the back galley wall
> "Emergency workers pulled out two people, both crew members, to safety, and local health officials said they remain conscious."