For earthquakes, look up

by Shana on May. 26th, 2011

It turns out that our best predictor for earthquakes may be high in the sky rather than deep underground. Before the recent quake in Japan, the atmosphere above its epicenter heated dramatically as a result of radon released from Earth's crust during smaller movements. This radioactive gas triggered condensation of water in the air, which released a large amount of heat.

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