Griff and I don't consider ourselves reporters, but I thought I'd break that rule for now.
A few minutes ago while on the sixth floor of my ten-story office building, I began to feel a rocking sensation. It seemed as if the whole building was rocking back and forth; it lasted for about 30 seconds.
My Facebook page is lighting up with similar reports all over downtown. I've heard from friends in Buffalo who say they felt something at about the same time.
This felt like a slightly stronger version of the minor earthquake we had early one morning a couple of years ago.
UPDATE: 700 WLW is reporting that this was the result of a magnitude 5.5 earthquake near Ottawa.
UPDATE 2: Here's a report from CBC News confirming the origin of the quake.