I felt it. I could also hear rumbling or maybe that was my stomach growling.

Anyhow, here’s the earthquake info:

http://quake.wr.usgs.gov/recenteqs/Quakes/ci14383980.html

Magnitude 5.8 – local magnitude (ML)
Time Tuesday, July 29, 2008 at 11:42:15 AM (PDT)
Tuesday, July 29, 2008 at 18:42:15 (UTC)
Distance from Chino Hills, CA – 3 km (2 miles) SW (235 degrees)
Diamond Bar, CA – 8 km (5 miles) SE (127 degrees)
Yorba Linda, CA – 9 km (5 miles) NNE (23 degrees)
Pomona, CA – 11 km (7 miles) S (178 degrees)
Los Angeles Civic Center, CA – 47 km (29 miles) ESE (103 degrees)
Coordinates 33 deg. 57.5 min. N (33.959N), 117 deg. 45.1 min. W (117.752W)
Depth 12.3 km (7.6 miles)