Yeah... what do you know...
http://quake.wr.usgs.gov/recenteqs/Q...i14313828.html
I'm working in the office next to J-Hush, and I thought it was a truck, too...
Really only felt a quick jolt here... even less than the last 3.5 that came from the same general area a month ago.
I felt both of those 3.5's, but I'm sure that it was only because, both times, I was occupying a room on the second story of a 2-story building.