That would depend on yield, cities selected, and many other parameters.
Only two cities in Japan have been attacked with nuclear bombs at the end of WW2: Hiroshima and Nagasaki.
Many people left farms for the cities around 1880 due to factors such as industrialization, technological advancements, and the promise of better job opportunities in urban areas. Cities offered higher wages, improved living conditions, and social mobility that attracted individuals seeking a different way of life.
Italy's are in many different parts of the country, so they are scattered around. Most of the main cities are in the north of Italy.
Back in World War II there were bombs and soldiers going around with guns, but now America has nuclear warheads that can take out entire nations. Opposed to when countries could only take out cities.
nuclear attacks
Nuclear power is not usually sited in cities, I'm not aware of any plants that are. They are always sited in non-urban areas.
There all from Different cities in and around New York
The cities most closely associated with Hiroshima and Nagasaki are likely to be cities in Japan, particularly those that experienced the impacts of World War II and the atomic bombings. Headlines in these cities often focus on peace, nuclear disarmament, and remembrance of the victims of the bombings. Events such as the annual Peace Memorial ceremonies in Hiroshima and Nagasaki highlight the importance of promoting global awareness of the consequences of nuclear warfare. Additionally, discussions around Japan's post-war pacifism and nuclear policy remain prevalent.
Nuclear weapon detonations
India has 19 nuclear power stations all together.
Hiroshima and Nagasaki
Hiroshima and Nagasaki