earth quake

So I was sitting at my desk working on a few of my accounts when the world started shaking. It really was the weirdest thing, I have never felt anything like it before in my life. I for the first time ever, was experiencing an earthquake.
the epicenter was about 35 miles from my house and the magnitude was a 4.9. craziness.
I used to stay with my grandma for a couple of weeks in southern california every summer, and never once did I feel an earth quake. Now, living in utah, I feel one. go figure