On the 37th floor of my office buildin I didn't even feel it. Others said they thought it was the wind. Tuned mass dampers are no joke.
One of my neighbours often close their doors with force which causes the wall to vibrate. Then I noticed things not attached to the walls also were shaking and understood it's an earthquake. I also noticed lots of birds flying near the Hudson River. I have never thought I would feel an earthquake here.
I also searched Google to see if there's an earthquake, and at 10:23am nothing was showing up. I remember a year ago Google used to ask "Have you felt your building start shaking", and nothing this time.