A steam turbine on a USN destroyer received a “slug” of water from the boiler instead of the required steam. The resultant “explosion” (actually, the blades broken from the rapidly spinning turbine, after being hit by water instead of steam) threw blades out a velocity which carried them from the engine room up through four steel decks.
A lot of energy is in those spinning turbines!
5:35 P.M. UPDATE - WYXC-AM reporter John Underwood says that the explosion took place in a cooling tower. There are reports that there are holes in the cooling towers.Some people nearby said that airbags in their vehicles near the plant were set off by the explosion.
There have been no reports of casualties.