Corrected entry: During specific scenes, volcanic gas is shown to have vaporized several city workers entirely, burned half a workers' head to the point where it appeared coal black, steamed rats, and vaporized Amy's friend. Volcanic gas in real life could burn a subject, but not instantly vaporize them like it did in the movie.
21collaw
20th Jun 2018
Correction: It's never shown that gas vaporized somebody, dead workers were present in the bags in the beginning of the film, a woman fell in the fissure, rats were lying roasted, but nobody vaporizes, and it's never mentioned by anybody in the film.