This part of Indiana I live in is pretty flat. Dull, right? So I figure, why not have a volcano? Now… I get my magic drill machine that can drill as deep as I want it to drill.
If I drill a deep enough hole, say through the crust of the Earth, will it turn into a volcano?
Instead of drilling a hole, another way to do it is to slam an asteroid on the other side of the planet.
https://earthsky.org/earth/dinosaur-killing-asteroid-caused-indias-deccan-traps/