"Arcing" at the Con Ed substation at a 31st Street in Astoria cast a blue glow over a massive cloud of smoke that could be seen for miles (see video by Peter Zanin, above).
It also closed down La Guardia Airport, delayed the MTA's No. 7 train and sent power surges through parts of the borough.
"There was a brief electrical fire at our substation in Astoria, which involved some electrical transformers and caused a transmission dip in the area," Consolidated Edison tweeted at 10:37 p.m. "We're currently investigating the cause of the incident."
There were no injuries, authorities said.
"Crazy blue green sky over Carlstadt Meadowlands," one Daily Voice reader wrote. "Greenish light flickering thru clouds."
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