Thanks Sky, Canders and Maven for the replies.

Canders I remember reading about it in Ottawa...

We never get them down this end not in over 20 yrs.
Yeah It almost felt like bass going off under you from a really loud concert or something, but the rumbling got me jumpy. Too close, literally, I'm glad that it wasn't higher.

I want to listen to the news tonight I know it'll be all over the place as it's so rare...

It was better not knowing what it was when it happens, cause you just assume it's something from next door, but once you know you think that's not good, to know that you just felt an earthquake under your home. It happened so quickly too.