Back in like 1988 I was staying at the Circus Cir

Back in like 1988 I was staying at the Circus Circus Skyrise in Vegas, top floor, 25th. I was sitting at a little table in the room with a swag lamp above it. it started swaying a little bit and I looked in the toilet and the water was moving around a bit. I thought it was a big gust of wind or such, but found out the next morning it was a low to moderate level earthquake.