I was in the building across the street from Battery Park last night and it seemed they were coming from the park itself. There was a marathon or race of some type with the street blocked off earlier in the day. Maybe it was for that?

some rich guy or corporation just had a summer party.

it's pretty common when the weather gets warmer.

and, was it at 10pm? that's when I heard it. that's pretty late for a fireworks show.

and the SI yankees fireworks was on Mon or tues or something I think that's what I heard when I went to the game on Sun.

A test run for the 4th of July?

Maybe they were practicing for Saturday night's fireworks for Apples in the Stereo at the River to River festival?

Sorry, meant The Apples in Stereo.

I was on a booze cruise when this happened in the harbor and the fireworks came from the South Street Seaport. Not sure why.

I was on Water St + John hailing a cab when these went up. They were not from the Seaport, but further South, around Wall St. I could not see them directly (just the reflections on the side of the building), but it was definitely not from the Seaport.

I watched the fireworks from the new Brooklyn Bridge Park. They were definitely not over Governor's Island. They were coming from near the ferry dock/battery park/financial district.

They were celebrating the upcoming unicycle festival on Governor's Island, September 3,4,5 http://nycunifest.com/

I'm gonna guess, um, no.

FUN!

to clarify - stadium is on northeast tip of SI - looking from manhattan, stadium is to the south of Governors Island

That's an interesting thought—but the video was shot from Jersey City and I just found out that Dan can't see SI from his vantage point.

I think I know the answer - from Manhattan, the fireworks appeared to be over Governors Island. In reality, they were post-game fireworks for SI Yankees game (they had special promotion last night). The SI Yanks stadium is on the tip of the island (next to the ferry dock).

Only problem with this theory: I filmed this video from Jersey City, looking east/southeast (you can see the Colgate Clock when some of the fireworks go off). I can see Brooklyn and Governor's Island (and a little bit of Battery Park) from my window, but Staten Island is definitely not in my field of view.

wow... so nice!

Or Columbia's victory over minority neighborhoods

Fireworks to celebrate NYU's acquisition of the island?