One of the best ways to figure out if it was big or not is duration, we were moving for around 45 seconds but not violently so I knew it was a pretty big one even though we were not close to it. I've noticed that there had been a lot of activity in the area it hit recently, I look at the USGS maps almost daily. I was wondering if there was one coming to the area and sure enough it hit. I noticed a big increase in activity yesterday and thought it was a bad sign. Here check this out, don't think they are getting any break down there at all.
http://earthquake.usgs.gov/earthquakes/recenteqsus/Maps/US10/27.37.-120.-110.php
