Sort of like the D.C. traffic cameras showing empty streets and snow on 9/11 and not a single motorcycle.
The only time I've ever felt the earth jiggle was at Disneyland. It felt like someone had picked up the hotel bed, moved it over a few inches and set it back down. Nothing scary but really weird.
Every earthquake is different. Some are just rolling ground. Some lift you up and down and some jerk you back and forth. Some can do combinations of the above. Appeared to be some significant up and down along with a couple of good back and forths at Fukushima. Appeared to last for about a minute and a half. A good rock and roller.