In Hiroshima, a group of eight Jesuit priests lived in a presbytery near the parish church less than a mile away from where the first atomic bomb ever dropped on a city exploded well within the total death and devastation radius. Keep in mind this was a blast that killed 80,000 people almost instantly and up to a total of 140,000 eventually.
All eight priests in their home building sat in the direct kill zone while for miles around nothing but ashes remained. They were not only “virtually unscathed from the effects of the bomb” but none of the group suffered either the ill-effects of radiation or major injuries from the bomb blast. Furthermore, while their building received some damage, unlike others it still stood.
While it is true that small numbers of other civilians in the blast area survived, all presumably suffered, and most if not all eventually died from radiation sickness.
What is truly miraculous is that radiation sickness did not affect ANY of the Jesuits at that time or decades later.
Why were these eight priests spared in an area of total death and destruction?
"In a strange parallel to what happened at Hiroshima, the Franciscan Friary established by St Maximilian Kolbe in Nagasaki was likewise unaffected by the bomb which fell there. St Maximilian, who was well-known for his devotion to the Blessed Virgin, had decided to go against the advice he had been given to build his friary in a certain location. When the bomb was dropped, the friary was protected from the force of the bomb by an intervening mountain. So both at Hiroshima and Nagasaki, can we see Mary’s protective hand at work?"