Predicting earthquakes with radon gas

Radon gas may leak out of fault lines in greater quantities prior to an earthquake. In 2009, an Italian man claimed to have used radon monitors to predict a quake near his hometown of L'Aquila. Success with the radon approach has been—like all attempts at predicting quakes—rather hit and miss. But a physics Nobel laureate hopes to change that with a new, improved radon detector that easier to use in the field.

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