yeah i felt it too, but they've been going on the last couple of days. they call them "swarms" apparently. if you go to www.usgs.gov and click on recent earthquakes you can see all of the earthquakes that are going on or have happened in the last week. its incredible how many there are.
September 3 2005, 18:02:17 UTC 6 years ago
September 3 2005, 18:54:14 UTC 6 years ago