Nuclear Destruction Radius

Destruction radius:

Here is a nuclear bomb simulator - pick a city and size of bomb. Largest bombs in circulation appear to be around 1 megaton TNT equivalent (MT) and 5 MT. Largest test ever was 50 MT. Nagasaki was 20 kiloton. https://t.co/AnjptMjdLH

— Marcin Jakubowski (@marcin_ose) March 13, 2022

Magnitudes

• 1.2MT destroys (mostly fatal if exposed) 500 sq km. Ex Kiev, or NYC. Same.
• 200 million square miles total earth area - land area of earth is about 150 million sq km
• To kill everyone (who is exposed), this would required 300,000 bombs of 1.2MT magnitude