According to a report in the Washington Times the country of North Korea is moving ahead with “building its first road-mobile intercontinental ballistic missile, an easily hidden weapon capable of hitting the United States.”

One nuclear bomb exploded in the upper atmosphere over the United States could disable the entire North American continent.

A nuclear bomb exploded in the upper atmosphere causes what is called an “electromagnetic pulse” (acronym – “EMP” or “HEMP” for high-altitude electromagnetic pulse).

Such a blast would emit an electronic burst of 50,000 volts per square meter per an article on the NaturalNews dot com web site. An HEMP travels at 94% of the speed of light according to the article.

(As a comparison most household electrical appliances and office equipment use 110 volts or 220 volts of electricity.)

An HEMP would burn out the circuitry of virtually every piece of electronics on the earth’s surface below because today’s electronics are manufactured with delicate circuitry that cannot withstand such extreme voltage ranges.

Instantly taken out of service would be most automobiles, televisions, computers, cell phones, air conditioners, airplanes, radios, military electronics, and many satellites.

Virtually all modern electronic equipment would be destroyed.

Even more seriously an HEMP attack would also disable the backup generators and control electronics for active nuclear power plants.

An intercontinental ballistic missile (ICBM) with a nuclear warhead could be targeted with missile defense systems if it were to come close to the earth so there is some defense against a conventional nuclear strike.

But a HEMP explosion might occur as high as 300 miles above the earth’s surface. That is higher than most satellites. That is much higher than conventional surface-to-air defense missiles can fly.

Wikipedia has a good technical article about EMP weapons, their history, and their effects.

The end of the age prophecy told about in the Book of Revelation could be describing an event such as an HEMP attack:

Revelation 18:8 “Therefore her plagues will come in one day — death and mourning and famine. And she will be utterly burned with fire, for strong is the Lord God who judges her.  

Revelation 18:9 ” The kings of the earth who committed fornication and lived luxuriously with her will weep and lament for her, when they see the smoke of her burning,  

Revelation 18:10 “standing at a distance for fear of her torment, saying, ‘Alas, alas, that great city Babylon, that mighty city! For in one hour your judgment has come.

Of course, if there were no electricity people would have makeshift fires to keep warm.

Travelers would not disembark from ships or land in the US from aircraft because there would be a total societal breakdown. It would be too dangerous for any visitors to come here.