Think of a volcano. The fire’s inside and steam is coming out of the top. But all of a sudden, it’s not from the top but from a fissure that opens up on the side where lava comes pouring out. It’s not what you might expect, not the dramatic blowing of the top, but something relatively minor. All that gas and lava comes spewing out. A relatively trivial opening can be just as devastating as the top going off of Mount St. Helens.
