Fire from Below (2009)

An arrogant mining mogul unleashes a natural disaster when he orders his team of drillers to bore into a remote cave. They strike a giant vein of lithium, which will explode if it gets wet. Not realizing the danger they are in, they continue working. Tragedy strikes, and flames spew in every direction, putting the nearby town in danger. It's up to intrepid seismologist Jake Denning (Kevin Sorbo) to stop the catastrophe before everyone gets turned into barbeque.