Volcanic eruptions: Earth’s core features seismic threat in distant future.

A Volcanic Doomsday Brewing 1,800 Miles Beneath Us (VIDEO)

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Feb. 7 2013 2:36 PM

A Volcanic Doomsday Brewing 1,800 Miles Beneath Us (VIDEO)

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.

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