Electromagnetic Pulse: North Korea’s Latest Threat Against U.S. The idea of an EMP attack is to detonate a nuclear weapon miles above the earth with the aim of knocking out power By Peter Landers

Posted By on September 4th, 2017

https://www.wsj.com/articles/electromagnetic-pulse-north-koreas-latest-threat-against-u-s-1504435000

 North Korea’s threats against the U.S. now include a tactic long discussed by some experts: an electromagnetic pulse, or EMP, triggered by a nuclear weapon that would aim to shut down the U.S. electricity grid.

North Korea’s state news agency made a rare reference to the tactic in a Sunday morning release in which the country said it was able to load a hydrogen bomb onto a long-range missile. The bomb, North Korea said, “is a multifunctional thermonuclear nuke with great destructive power which can be detonated even at high altitudes for super-powerful EMP attack.”

The idea of an EMP attack is to detonate a nuclear weapon tens or hundreds of miles above the earth with the aim of knocking out power in much of the U.S. Unlike the U.S. atomic bombs dropped over Hiroshima and Nagasaki in 1945, such a weapon wouldn’t directly destroy buildings or kill people. Instead, electromagnetic waves from the nuclear explosion would generate pulses to overwhelm the electric grid and electronic devices in the same way a lightning surge can destroy equipment.

In a worst-case scenario, the outages could last for months, indirectly costing many lives, since hospitals would be without power, emergency services couldn’t function normally, and people could run short of food and water.

Warnings about the threat have percolated for many years, including in a 2008 report commissioned by Congress that warned an EMP attack could bring “widespread and long lasting disruption and damage to the critical infrastructures that underpin the fabric of U.S. society.”

When the U.S. tested a hydrogen bomb in the Pacific in 1962, it resulted in lights burning out in Honolulu, nearly 1,000 miles from the test site. Naturally occurring electromagnetic events on the sun can also disrupt power systems. A 1989 blackout in Quebec came days after powerful explosions on the sun expelled a cloud of charged particles that struck earth’s magnetic field.

Skeptics generally acknowledge that an EMP attack would be possible in theory, but they say the danger is exaggerated because it would be difficult for an enemy such as North Korea to calibrate the attack to deliver maximum damage to the U.S. electrical grid. If a North Korean bomb exploded away from its target location, it might knock out only a few devices or parts of the grid. CONTINUE AT SITE

Categorized under: WORLD NEWS.
Tagged with: no tags.

Comments are closed.