I felt this one too. I'm near Manchester NH. It's the only quake I've actually felt since one back in the 1980's when I lived in Haverhill MA.
I thought this one was a train at first, but when the building started to shake I figured it had to be an earthquake. I turned down the TV so my 3yr old daughter could hear it, but she was unimpressed (just wanted me to turn the TV back up again)