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NYC Utility Probes Electric Flash that Lit Sky in Eerie Blue
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Published 6 years ago on
December 28, 2018

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NEW YORK — Electric utility Con Edison was working Friday to figure out what caused a high-voltage equipment failure that unleashed an otherworldly flash of bright blue light in the night sky over New York City.
The event Thursday caused power outages, briefly grounded flights at LaGuardia airport and filled social media feeds with eerie photos, questions and jokes, to the point that even the New York Police Department tweeted there was “no evidence of extraterrestrial activity.”
While Con Ed initially described a “brief electrical fire” at a power substation in the Astoria section of Queens, spokesman Bob McGee said Friday that what happened was an electrical flash after a malfunction involving 20-foot-high (6-meter-high) equipment with cables carrying 138,000 volts. By comparison, a standard U.S. household gets 120-volt service.
“It was like a lightning bolt, essentially,” McGee said.
Substations transform electricity that comes in from power plants at high voltage down to lower voltage levels, and send it on for use.

Pulsing Orb of Blue Light

Thursday’s malfunction involved voltage-monitoring equipment, Con Ed said in a release.
Normally, a circuit-breaker-like device intervenes and quickly cuts off power to the affected equipment if there’s an electrical fault, but that apparently didn’t happen Thursday, McGee said. Instead, the electricity kept cycling through, causing the flash.

“It was pitch black outside, and then suddenly the whole side of the eastern sky was lighting up and changing colors.”Madeleine Frank Reeves, New York resident
Across much of the nation’s most populous city, people looked up around 9:12 p.m. to see a pulsing orb of blue light that lasted a minute or more in the sky over Queens, casting the skyline into a strange silhouette.
“It was pitch black outside, and then suddenly the whole side of the eastern sky was lighting up and changing colors,” said Madeleine Frank Reeves, who saw the lights from her Upper West Side apartment.
Onlookers invoked supernatural and sci-fi screen classics — “Ghostbusters,” ”Independence Day,” ”Close Encounters of the Third Kind” and more. There was, of course, a hashtag — #alieninvasion — and a tongue-in-cheek take on a real scientific phenomenon: the “Astoria Borealis.”
Witnesses’ video showed plumes of smoke pouring from a piece of equipment at the substation, and nearby residents reported hearing banging or roaring sounds. Those likely were caused by the electrical arc going to the ground, McGee said.

No Serious Injuries

The arc subsided on its own, he said. No one was seriously injured, though an employee at the substation reported eye irritation, Con Ed said.
Meanwhile, power flickered or went out at least briefly around northern Queens. Although LaGuardia has backup power, outages closed parts of the airport for a time. Some subway service was disrupted for about a half-hour, according to Con Ed.
McGee didn’t immediately have information on whether there had been any recent problems with or repairs to the equipment that failed.
The utility will examine instrument readings to try to pinpoint the cause of the malfunction, he said.
Thursday wasn’t the first time a substation power problem has illuminated the city’s skies with a strange glow. Superstorm Sandy flooded a Con Ed substation in 2012, a producing a great, greenish flash and plunging a swath of Manhattan into darkness.

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