I just felt an earthquake

We live in a shaky building. Whenever a big truck drives by, or someone moves some furniture, or a kid sneezes, our apartment wiggles a little. After a couple days I stopped my hourly check-ups of the USGS Earthquake Map, assured that the wobbles were not earthquake related. (I'm back in California! Yay earthquake paranoia!)

But just a few minutes ago I was knitting and watching House, and the wind came up. The place started wobbling like crazy. At first I was like, wow, strong breeze, but the moving lasted longer than it should have and was much stronger than the previous wiggles and wobbles. As I was bringing up the USGS Earthquake Map, the local news broke in to House to announce a quake happening in Sonoma County. Go to the map, and look at the big square just under Santa Rosa. That's what I felt. (We live by the dot left of Concord. I guess at least one of the minor wobbles last week was a tiny quake.)

I'm fine. The cats are fine. I think Grendel slept through it. Nothing happened in the house. I've been wondering how sound this building is, though, considering how much it shakes on a regular basis, when there aren't earthquakes happening. At least we're on the top floor, so if the big one does happen to hit while we're home, we won't be crushed.