The FDNY and Buildings Department officials are currently inspecting buildings by the intersection of 72nd Street and Second Avenue, where a planned explosion for the Second Avenue subway project was a bit too powerful. Officials say no injuries have been reported so far, but the blast did cause damage to sidewalks and buildings. One bystander says, "I almost got cracked by like a 50 lb boulder."

An MTA spokesman confirmed that the explosion, which happened around 12:45 p.m., was related to the Second Avenue subway.

We'll update as more information becomes available. In the meantime, check out what these blasts look from the other side.