That's a big flood Marco, I hope it doesn't get worse. Where in Italy do you live?
Sardinia, the island far from the continent. Those are very rare events, but the whole land is actually quite exposed to hydrologic risks, for a number of reasons I never bothered to inquire. At least in the lower half of the island very heavy rain equals disaster.
And yeah, as I said I hope it doesn't get worse too, but at least EVERYONE SURVIVED this time and the damages were not as severe as the other time (because that time the storm hit full force the slope of the mountains instead of the valley, and the water just went down from there like an avalanche). Today facebook's full of pictures and videos, in one week it will be all forgotten