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suitcase nuke or portable device would most likely be a 1KT to 10KTbomb. As fyi, the device used on Hiroshima was about a 15KT bomb.Damage estimates - Effects of a nuke depend on the size of the device andwhether it’s a surface blast or a high-altitude blast. The following graphicshows the effects of a 500KT surface bomb from Ground Zero (GZ) toseveral miles out. (Courtesy of www.radshelters4u.com and “NuclearAttack Environment Handbook”, FEMA - August, 1990)EFFECTS OF 500-KT SURFACE-BURST WEAPONModerate damageto commercial-typebuildingsHeavy damageto commercial-typebuildings and equipmentDestructionof all excepthardenedfacilities20 psi30 psi10 psi5 psiLight damage tocommercial-type buildings2 psiMany firesinitiatedPossible fire spread1 psi?MilesGroundZero0.9 1.1 1.5 2.2 3.6 5.8Learn more about Nuclear Blast, Thermal Pulse Effects and psi overpressure at www.radshelters4u.comPlease note the number of miles affected by this 500KT blast is fairly small(< 6 mile radius). Also realize a suitcase nuke or portable device used by aterrorist group would potentially be a 1KT to 10KT bomb reducing theblast zone immensely. In other words, if you are several miles away fromGround Zero your chances of survival are good if you take immediateactions to protect yourself.Map your area - An interesting website by author Graham Allison and theBelfer Center for Science and International Affairs can provide a visualmap of the impact a 10KT bomb would have by entering a zip code. Checkout www.nuclearterrorism.org/blastmaps.htmlMORE ABOUT RADIATIONNuclear blasts create radioactive materials that emit harmful invisible rays(radiation). As the materials decay or spread out, radiation levels drop.www.itsadisaster.net or call 1-888-999-4325233