Can you guess which state had over 500 significant quakes in 2014? The answer is telling.

It's a 600-fold increase in the historical rate of quakes. And it's not natural.

When I think of a disaster in Oklahoma, I usually assume it's a tornado.

That's because Oklahoma sits right in Tornado Alley. And it's true, some really terrible storms have come through the state in the last few years, such as the one that hit the town of Moore in 2013.

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