"In 2012, a show presented by Garden State Fireworks went awry. On Wednesday, July 4, 2012, 7,000 fireworks,[4] intended for a 17-minute display, discharged prematurely and simultaneously from all four barges and the pier.[9] The entire cache exploded in less than a minute"
https://en.wikipedia.org/wiki/Big_Bay_Boom#2012_incident