[greeneyes]

Haven't found any word of the cause yet. Haven't really seen anything in mainstream news either.

[UCANSEE2]

Obama said he was going to shut down coal plants.

I think he has a lot of time on his hands right now.

[Blue Jays]

President 0bama quickly announced, "It is NOT terrorism!" approximately .000485 seconds after the last explosion was heard, during which time he apparently completed an exhaustive investigation on his own.

[W.]

I used to drive past a huge plant like that on I–75 passing thru Dayton. Wonder if that is the same one, it was on the right heading south, and there was a steep rockface on the left a bit South. Ah, memories...of 1975.

[VanShuyten]

Coal dust can be explosive, just like flour dust or sugar dust.

[jacknhoo]

I used toultrasonically inspect boilers at power plants and paper mills a few decades ago. Probably boiler tubes got too thin or a weld seam failed and the tubes burst letting water inside...pretty dangerous.

[mozarky2]

Black smoke from the stack would indicate to me a loss of ignition in the boiler. Then, when ignition was restored, all that unburned coal dust went KERBLOOEY! It happened at the Independence Steam Station here in Arkansas several years ago-about a $50 million fix, IIRC...

[GWynand]

What I have heard from others that work with that plant is it is looking like a steam explosion, but in a system outside the boiler.

[xzins]

Happened day before yesterday. The plant is on the Ohio river about an hour east of Cincinnati.

[Haiku Guy]

This is not necessarily suspicious. There are a lot of explanations for an explosion at a coal fired power plant.

[t4texas]

The Russians again