[TerranC]

Originally posted by Ragnarok:
IIRC lightning hit a station somewhere (forget where) and knocked its power out. The surrounding stations tried to cover for it while it was down and they couldn't handle the strain so they too blew. This went on down the line until the final outcome as it was. But I may be mistaken on that.

There was no lightning; the main cause is still unknown, but something happened at a transmission line in ohio that caused it to go out. The power that should have been normally flowing throughout those lines were diverted to other lines, and those other lines, which couldn't handle the extra surge, went pop, taking out power stations connected to them.

That's my understanding of this whole event; other provinces and states were spared from this domino effect because they cut the connection from the falling dominoes.