I'd imagine the Sburb would supply you with a volcano if you don't enter the game with one, just like it gives you an internet connection and elecricity so you don't have unnecessary obstacles.
I mean, it definitely may, but also, ‘unnecessary obstacles’ have you SEEN SBURB? Everything in the game is a labyrinth of riddles and weird game design choices, I wouldn’t be surprised to see it just screw people over because they don’t have a Volcano laying around.