15 minute firework show in 30 seconds! say what? Posted on July 5, 2012April 3, 2015 by Joe The Big Bay Boom Firework Show in San Diego for 2012 was a “Big Bay Bust”. There was a technical problem and ALL of the fireworks went off within 30 seconds. The original Big Bay Boom was set to last about 15 minutes. Posted in Justin and tagged Funny Video.