MicroQuake!
About a minute ago.
2-3 bounces up and down felt on the 21'st floor of our building in the SF Financial District.
(*Wheee!*)
So..did anyone else get a shake?
(nothing's showing up definitively over here: http://quake.usgs.gov/recenteqs/ yet)
*edit* OK. Turns out it was a 4.4, around San Jose. I'm kind of surprised we felt it this far out.