# What is the damage area of a nuclear bomb?

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## What is the damage area of a nuclear bomb?

In Hiroshima, steel frame buildings suffered severe structural damage up to 5,700 feet from X, and in Nagasaki the same damage was sustained as far as 6,000 feet. In Nagasaki, 9″ brick walls were heavily cracked to 5,000 feet, were moderately cracked to 6,000 feet, and slightly cracked to 8,000 feet.

What makes a nuclear explosion so big?

Fusion releases neutrons. These neutrons hit a layer of uranium surrounding the fusion fuel causing atoms in it to fission; this fissioning generally contributes more than half of the weapon’s total explosive yield. Neutron bombs therefore create a larger amount of radiation than a normal weapon of the same yield.

How much damage does a nuclear weapon cause?

Summary of the effects

Effects Explosive yield / height of burst
1 kt / 200 m 20 kt / 540 m
Urban areas completely levelled (20 psi or 140 kPa) 0.2 0.6
Destruction of most civilian buildings (5 psi or 34 kPa) 0.6 1.7
Moderate damage to civilian buildings (1 psi or 6.9 kPa) 1.7 4.7

### How much damage was caused by the atomic bomb?

The uranium bomb detonated over Hiroshima on 6 August 1945 had an explosive yield equal to 15,000 tonnes of TNT. It razed and burnt around 70 per cent of all buildings and caused an estimated 140,000 deaths by the end of 1945, along with increased rates of cancer and chronic disease among the survivors.

How much would the largest nuclear bomb destroy?

Soon after America set off its largest-ever nuclear blast on Bikini Atoll in the Pacific, one of the scientists behind the weapon’s design aimed for something even bigger: a 10,000-megaton blast that would’ve been 670,000 times as powerful as the bomb dropped on Hiroshima, so large it would’ve destroyed a continent and …

How strong are nuclear bombs today?

In modern nuclear arsenals, those devastating weapons are considered “low-yield.” Many of the modern nuclear weapons in Russian and U.S. nuclear weapons are thermonuclear weapons and have explosive yields of the equivalent at least 100 kilotons of dynamite – and some are much higher.

## How much damage did the atomic bombs cause?

What are the dangers of a nuclear explosion?

Hazards related to nuclear explosions. Bright FLASH can cause temporary blindness for less than a minute. BLAST WAVE can cause death, injury, and damage to structures several miles out from the blast. RADIATION can damage cells of the body. Large exposures can cause radiation sickness.

How does a nuclear blast kill a person?

For the most part, a nuclear blast kills people by indirect means rather than by direct pressure. Approximately 35 percent of the energy from a nuclear explosion is an intense burst of thermal radiation, i.e., heat.

### How big is the area destroyed by a nuclear bomb?

The volume the weapon’s energy spreads into varies as the cube of the distance, but the destroyed area varies at the square of the distance. Thus 1 bomb with a yield of 1 megaton would destroy 80 square miles. While 8 bombs, each with a yield of 125 kilotons, would destroy 160 square miles.

How much energy is released from a nuclear explosion?

In most cases, the energy released from a nuclear weapon detonated within the lower atmosphere can be approximately divided into four basic categories: residual radiation: 5–10% of total energy with the mass of the explosion.