I felt it big time at work. I was grinding a bracket and the floor started moving. I was like what the fuck… I literally saw the concrete floor heave up about 6 inches. Looked out into the warehouse and the charger racks were swaying all over the place.
It was cool. It lasted about 6 seconds that I noticed. Didnt feel any aftershocks.
My buddy described a massive wave moving through the roof the length of the building. (its 750,000 sq ft so its huge)