How Do You Calculate the Blast Radius of a Nuclear Explosion?

[SiegfriedC]

My first post here, so Hello Everyone!

I searched the forum for info but unfortunately I couldn't find it.

I am in the middle of making nuclear explosion map (google maps based). Can anyone support me with equations for calculating approximate blast radius based on yield?

I would like to display area (circle) of total destruction, area of heavy damage caused by shockwave and area of heavy fires (firestorm) caused by thermal radiation. Any other suggestions are welcome. If there are no generic equations, could you please calculate values for 550kT?

Regards

 

[mgb_phys]

See http://en.wikipedia.org/wiki/Effects_of_nuclear_explosions