I watched an excellent documentary about super volcano's. They had this giant flask that was under vacuum pressure. It was simulating the volcano under the ground. So they had a liquid which was the magma, the vacuum, the bunsen burner for the heat. Then they showed what happened when the vacuum pressure hit the outside air. SWOOSH! It erupted big time. In less than a second the whole thing practically exploded. The scientist said..."a super volcano does the same thing only a trillion times more powerful." It was scary.

Only a fool would drill into a super volcano.