A volcanic doomsday brewing 1,800 feet beneath us

Published On: Feb 07 2013 06:29:49 PM CST   Updated On: Feb 07 2013 01:51:51 PM CST

Seismic waves from deep in the Earth’s core could portend one of the planet’s most devastating volcanic explosions—but we probably have at least 100 million years before we need to worry.