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The blast radius of a nuclear surface burst will vary depending on the building density, meteorological conditions (air pressure, temperature, humidity), terrain. Also, since no specific level of damage or overpressure ring was specified, here are some examples of what to expect:

For a 340 kt surface burst:

We can expect damage up to 12 miles from the hypocenter (broken windows, etc., but capable of causing injuries).

Expect moderate damage to houses and light damage to all structures up to about 5 miles from the hypocenter.

Houses would be destroyed and moderate to severe damage to even reinforced concrete structures at the 5 PSI overpressure ring about 2 miles from the hypocenter.

About 1.6 miles from the hypocenter (7 PSI ring) most large reinforced structures like skyscrapers and the like would be severely damaged or destroyed.

About 1 mile from the hypocenter, pretty much all structures would be destroyed (15 PSI).

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12y ago
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5mo ago

The blast radius of a 340 kiloton yield surface burst can vary depending on factors like local terrain and weather conditions. As a general guideline, for a 340 kiloton blast, the immediate severe blast effects can extend up to around 3.2 miles, with damage from the pressure wave extending to approximately 13 miles.

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Q: What is the blast radius of a 340KT yield surface burst?
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