Hazon perished during the first Allied air raid on Rome, on 19 July 1943. After the first wave of bombers had dropped its bombs, Hazon rushed towards the San Lorenzo district, which had suffered the heaviest damage, along with his Chief of Staff, Colonel Ulderico Barengo, to co-ordinate rescue efforts; they were caught en route by the incoming second wave and a bomb exploded near their car, killing both. Hazon was posthumously awarded the Silver Medal of Military Valour.