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If a nuclear bomb explodes, these are the emergency supplies you should have prepared or grab on the run

Business Insider logo Business Insider 7/6/2017 Dave Mosher

nuclear bomb explosion blast city shutterstock_404953870 © Provided by Business Insider nuclear bomb explosion blast city shutterstock_404953870

North Korea on July 4 reportedly launched its first intercontinental ballistic missile — a rocket capable of traveling more than 3,400 miles with a weapon on top.

The feat suggests that the isolated country, which is one of nine nations that together wield more than 14,900 nukes, can strike Alaska.

However, the rest of the country faces a much different and shadowy nuclear threat: A terrorist-caused nuclear detonation, which is one of 15 disasters scenarios that the federal government has planned for — just in case.

"National Planning Scenario No. 1 is a 10-kiloton nuclear detonation in a modern US city," Brooke Buddemeier, a health physicist and expert on radiation at Lawrence Livermore National Laboratory, told Business Insider. "A 10-kiloton nuclear detonation is equivalent to 5,000 Oklahoma City bombings. Though we call it 'low yield,' it's a pretty darn big explosion."

nuclear bomb explosion blast city shutterstock_639638614 © Provided by Business Insider nuclear bomb explosion blast city shutterstock_639638614 Buddemeier couldn't say how likely such an attack might be today. But the concern isn't unfounded, since weapons-grade nuclear materials have proliferated in recent years, along with smaller, kiloton-class bombs. And while governments do their best to safeguard nuclear weapons materials, there's no guarantee a terrorist couldn't succeed in obtaining them.

Should a nuclear blast occur near your city or town, and you somehow avoided its skin-searing flash of light, crushing shockwaves, and incendiary fireball, take shelter immediately (read our full fallout survival guide here) and have a few items handy in your emergency kit.

"Would you have considered Oklahoma City a likely target?" he said. "I think it's worthwhile for everybody to think about preparedness for any kind of event."

Buddemeier recommends that you round up the emergency supplies recommended by (we've listed them at the end of this post).

"This isn't just for the nuclear holocaust event," Buddemeier said. "This is for general emergency preparedness, and making sure that you and your family can be safe in an emergency."

But if you're in a pinch for time or can't get to your kit, he said you should grab a few basics while you run for cover from radioactive fallout.

Why you should prepare to hunker down for 24-48 hours

nuclear explosion fallout radiation danger zones decay bruce buddemeier llnl © Provided by Business Insider nuclear explosion fallout radiation danger zones decay bruce buddemeier llnl A fearsome aftereffect of nuclear blasts is fallout, which is a complex mixture of fission products (or radioisotopes) created by splitting atoms.

Many of these fission products decay rapidly and emit gamma radiation — an invisible yet highly energetic form of light. Too much exposure to this radiation in a short time can damage the body's cells and its ability to fix itself, leading to a condition called acute radiation sickness.

"It also affects the immune system and your ability to fight infections," Buddemeier said.

Only very dense and thick materials, like many feet of dirt or inches of lead, can reliably stop the gamma radiation emitted by fallout. It's also a threat you'd be foolish to attempt to escape by driving away in a car or other vehicle.

"[Y]our ability to know where the fallout's gonna go, and outrun it, are — well, it's very unlikely," he said, because it would be carried by high-altitude winds "often booking along at 100 miles per hour."

While rushing to a fallout shelter within the first minutes after a blast, or migrating to a better one, you'll want a few things to get through the next 24 to 48 hours — when radioactive fallout exposure risk is the greatest.

The minimum your emergency kit should have

If a full emergency preparedness kit isn't handy — say, on public transit to or from work — Buddemeier recommends trying to grab a few items, just as long as it won't delay your taking shelter from fallout by more than a couple of minutes.

Item number-one: "A radio," he said, and ideally a hand-cranked type with a USB charging port, which can power other devices. "If you have a cellphone, that'll work too."

Buddemeier said he prefers a radio over a mobile phone because "sometimes the cell towers may be affected," either by power outages, crushing demand, or an invisible yet powerful effect of nuclear weapons, called electromagnetic pulse. (The effect can disable electronics, though a ground detonation would mostly confine EMP to the blast damage zone, where you'd have much bigger problems.)

He said a radio is important because you need to receive emergency broadcasts and instructions. It's one of the simplest ways to figure out where dangerous fallout has landed, when you can leave your shelter, and where the safest routes to exit a fallout zone are located.

apartment building house radioactive fallout shelter protection quality level llnl brooke buddemeier © Provided by Business Insider apartment building house radioactive fallout shelter protection quality level llnl brooke buddemeier

Second, Buddemeier says, you'll want water — ideally one gallon per person per day, according to In addition to drinking it, you may need it to rinse off any radioactive fallout after removing your clothes, since this can drastically reduce your radiation exposure.

Third, Buddemeier said, "I would probably grab a breakfast bar or two to stave off the hunger a little bit." Fourth, he says to grab any essential medications or treatments you might need.

Buddemeier says there's a risk in trying to gather too much stuff, since the first minutes and hours after a blast are when radioactive fallout exposure risk is the greatest — especially outdoors.

One thing he definitely does not recommend stressing about immediately after a blast are potassium iodine pills, which aren't very useful in the first 48 hours after a blast.

"Most people seem to think of the potassium iodide, or KI pills, as some type of anti-radiation drug. They are not," Buddemeier said. "They are for preventing the uptake of radio-iodine, which is one radionuclide out of thousands of radionuclides that are out there."

"Radio-iodine is ... probably like [0.2%] of the overall exposure that you may be facing if you're outdoors," he said, adding that the pills are most helpful for addressing longer-term concerns about food supply contamination. "The most important thing is sheltering in place, and not trying to seek out things like KI [pills], because the act of trying to find your KI and get your KI may cause you to get a much higher exposure to everything else and offer very little protection in return."

Buddemeier says he hopes no one will ever have to act on his advice. But if people could find good shelters, he says — and are able to receive broadcast instructions from emergency personnel — the blow of a catastrophe could be softened.

"We may not be able to do much about the blast casualties, because where you were is where you were, and you can't really change that. But fallout casualties are entirely preventable," he said. "In a large city ... knowing what to do after an event like this can literally save hundreds of thousands of people from radiation illness or fatalities."

emergency preparedness supply kit shutterstock_222250729 © Provided by Business Insider emergency preparedness supply kit shutterstock_222250729 It's smart to have a family plan as well as a few basic emergency kits to last several days, then stash them at home, work, and in your vehicles.

But the emergency supply lists below, published by the US Federal Emergency Management Agency, aren't just helpful for making it through the aftermath of a nuclear blast — they're also good for weathering tornadoes, hurricanes, snowstorms, power outages, and other take-shelter emergencies.

FEMA recommends each of your kits have these essential items in a portable bag:

  1. Water, one gallon of water per person per day for at least three days, for drinking and sanitation
  2. Food, at least a three-day supply of non-perishable food
  3. Battery-powered or hand crank radio and a NOAA Weather Radio with tone alert and extra batteries for both
  4. Flashlight and extra batteries
  5. First aid kit
  6. Whistle to signal for help
  7. Dust mask, to help filter contaminated air and plastic sheeting and duct tape to shelter-in-place
  8. Moist towelettes, garbage bags and plastic ties for personal sanitation
  9. Wrench or pliers to turn off utilities
  10. Can opener for food (if kit contains canned food)
  11. Local maps

If you have the space, the need, and the foresight, FEMA also recommends beefing up your basic kits with the following items:

  1. Prescription medications and glasses
  2. Infant formula and diapers
  3. Pet food and extra water for your pet
  4. Important family documents such as copies of insurance policies, identification and bank account records in a waterproof, portable container
  5. Cash or traveler's checks and change
  6. Emergency reference material such as a first aid book or information from
  7. Sleeping bag or warm blanket for each person. Consider additional bedding ou live in a cold-weather climate.
  8. Complete change of clothing including a long sleeved shirt, long nts and sturdy shoes. Consider additional clothing if you live in a cold-weather climate.
  9. Household chlorine bleach and medicine dropper — When diluted nine parts water to one part bleach, bleach can be used as a disinfectant. Or in an emergency, you can use it to treat water by using 16 drops of regular household liquid bleach per gallon of water. Do not use scented, color safe or bleaches with added cleaners.
  10. Fire extinguisher
  11. Matches in a waterproof container
  12. Feminine supplies and personal hygiene items
  13. Mess kits, paper cups, plates and plastic utensils, paper towels
  14. Paper and pencil
  15. Books, games, puzzles or other activities for children

You can access more information about how to prepare for a variety of emergency scenarios at FEMA.

Slideshow: 14 Cheap Emergency Essentials You Don't Want to Be Without (Courtesy: Cheapism)

WEATHER THE STORM: With hurricane season gearing up on the East Coast and post-flood cleanup ongoing in Louisiana, Americans are reminded that the possibility of a natural disaster causing evacuation or the loss of essential services is ever present, regardless where they live. It's easy to go overboard on storm prep, especially in last-minute panic mode, but a few simple steps taken in advance make emergency preparation affordable even on a tight budget. The American Red Cross and Federal Emergency Management Agency recommend two weeks' worth of emergency supplies for sheltering in place and a three-day supply for evacuating to a safe zone.<br><br><strong>Related:</strong><a href="">12 Things to Keep in Your Car for Emergencies This Winter</a> 14 Cheap Emergency Essentials You Don't Want to Be Without


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