The search continues for people buried under the historic buildings that have collapsed in towns and villages across the Abruzzo region of Italy. Rescuers have pulled more than 100 people out of the rubble alive, but it still looks like the death toll will exceed 200.

Italy has two fault lines, one running down through its central mountains. And although fore-shocks can be detected, it’s still incredibly difficult to predict when an actual quake will occur. One Italian expert, who detected higher than normal levels of radon gases, says he was ignored a month ago when he predicted a quake.