Of course, the answer depends on the number of nuclear bombs released. According to the Federation of American Scientists, Russia and the US possess 90% of the world's nuclear weapons. Russia has 1,588 weapons deployed on transcontinental missiles, with a range of at least 5,500km and heavy bomber bases, which own aircraft capable of carrying and dropping nuclear bombs. The US currently has 1,644 weapons equipped in a similar way, according to Live Science.
When a nuclear bomb explodes
Nuclear weapons come in many different sizes, but modern nuclear bombs will detonate by triggering the detoxification reactions. phanoding is the reaction of separating the core of heavy atoms into lighter atoms and releasing neutron. These neutrons can then penetrate the core of nearby atoms, separating them and causing an uncontrolled chain reaction.
The phan waste explosion had terrible destructive power. The ballistic bomb, sometimes known as the bomb or the A- letter bomb, destroyed Japan's Hiroshima and Nagasaki cities with a destructive power of 15 kiloton to 20 kiloton TNT. However, many modern nuclear weapons have the ability to cause even more damage and destruction.
More powerful than phan waste bombs are thermal bombs or hydrogen bombs. This type of bomb uses the power of an initial phanks reaction to merge hydrogen atoms in weapons. This thermal reaction produces more neutron, leading to more phantion and more thermal activity. As a result, a hot air balloon with temperatures equivalent to the heat of the center of the Sun was generated in the bomb area. Thermobombs have been tested, but have never been used in war.
When a nuclear weapon with a destructive power of 10 kiloton, equivalent to the size of bombs in Hiroshima and Nagasaki, is detonated, it will immediately kill about 50% of people within a radius of 3.2km, according to a 2007 report from a conference on the Defense Project. According to the non-proliferation organization of nuclear weapons ICAN, an explosion when a bomb is falling freely in the air will have a wider explosive radius.
In addition to explosive pressures, the causes of death from nuclear bombs often include burns, high-intensity radiation exposure and other fatal injuries. Along with that, most of the buildings within a radius of 0.8km of the blast would collapse or be severely damaged.
The US government's ready.gov website recommends that anyone who is warned in advance by official communications or sees light from a nearby explosion should travel to the basement or the center of a large building and stay there for at least 24 hours to avoid being affected by radioactive dust.
However, there is little hope for survivors near the blast site, according to the International Red Cross Committee (ICRC). With the roads and railway tracks destroyed, hospitals flattened and doctors, nurses and first responders in the blast area dead or injured, there will be few options to provide supplies or people for assistance, especially with high levels of radiation after the blast.
The survivors will be exposed to radioactive dust and need to be disinfected. According to the book "Nclear options for the 21st century: A Citizen's guide", most of the victims were likely to suffer severe burns caused by the heat radiated from the initial explosion. Depending on the terrain of the blasting area, fires caused by the initial explosion can combine and create storms and fires in the blasting area. According to the US Department of Energy, such a fire broke out in Hiroshima and submerged 11.4 square kilometers in a sea of fire.
We invite you to read part two of the series of articles on nuclear bombs called "When the nuclear bombs explode: Radioactive dust and environmental disasters".