at about 4:20 pm, today, 10/10/08, i felt a tremor. it only lasted a few seconds, i almost missed it. it was a good firm shake though.
validated at: http://quake.wr.usgs.gov
Earthquake Probabilities for the San Francisco Bay Area
USGS and other scientists conclude that there is a 62% probability of at least one magnitude 6.7 or greater quake, capable of causing widespread damage, striking the San Francisco Bay region before 2032.