Relax: Russian Satan 2 Missile only delivers 40 megaton warheads vs. Tsar Bomba 100 megaton

There's nothing new under the sun here, avoiding populated areas from a distance of 65 miles will bring mild discomfort such as genital itching and uncontrollable drooling and 83% of your body will be covered in second degree burns so you take a couple of days off work and an aspirin.