sentence1: Giampaolo Giuliani told locals to evacuate their houses and posted a video on YouTube in which he said a build-up of radon gas around the seismically active area of Abruzzo suggested a major earthquake was imminent. Several tremors had been felt in the medieval city of L'Aquila, 60 miles north-east of Rome, since mid-January, and vans with loudspeakers had reportedly driven around the city spreading the warning. But instead of heeding the advice of Mr Giuliani, local authorities reported him to police for "spreading alarm" and he was told to remove his findings from the internet.
sentence2: Giampaolo Giuliani works at the Gran Sasso National Laboratory.