https://motherboard.vice.com/en_us/article/mbyd9v/heres-why-new-york-citys-blue-sky-electrical-explosion-was-so-big

At around 10PM last night, an explosion at a Con Edison facility in Astoria, Queens in New York sent an aqua-blue pulsating light across the entire New York sky for a few hours.

LaGuardia Airport promptly lost power, and an unknown number of Queens residents also lost power, according to a tweet from Con Edison.