This evidently was a massive power surge.
When the Fan960 came back on the air, the announcers were talking about how the power flickered in the Enmax Centre in Lethbridge. My mom says the same happened in Airdrie.
It hit half the province at least.
CC: I had 2 hours worth of work on wikipedia just saved when the surge hit. 10 minutes sooner, and I probably would have thrown my computer through the wall.