Police investigating a loud boom on Staten Island that was heard in several neighborhoods say they've ruled out a large fireworks explosion as the cause.
The blast at about 7:55 p.m. Monday led to a flurry of 911 calls about shaking buildings. Fire Department spokesman Jim Long said there were no injuries or damage.
Several theories about the cause of the noise have been floated.
National Weather Service meteorologist Brian Ciemecki said it was not lightning.
A North American Defense Command spokesman said there were no “operations at all that can be associated with a sonic boom.”
Consolidated Edison reported no outages or transformer explosions.