Radon helps reliably predict oncoming earthquakes
Researchers analysed data for 2005−2013 relating to earthquakes in the Black Sea coast region — that is from Georgia to the Aegean Sea basin and from the Krasnodar Territory to the north of Turkey. The scientists have found that before most earthquakes the concentration of radon in the upper layer of the ground increases dramatically a couple of days before the tremors begin.
The method proved to be working in Italy before the earthquake in 2009. It was possible then to predict the earthquake, but the residents were not evacuated because the majority of experts did not take the forecast seriously.