[gpspake]

One day I got to work early before anyone else was there and I was daydreaming pondering earthquake scenarios and what I would do if one happened (I was on an upper floor).

It wasn't until hours later when I checked the news and heard conversations around the office that I realized I had felt an earthquake and just didn't realize it. It had never even occurred to me

I think living in a city I'm just accustomed to a car driving by in a parking garage and various other rumblings so I never considered that's what it was. Later in retrospect, I recognized that being on the 7th floor of a concrete building, nowhere near a parking garage or construction, that was the only explanation.

The most memorable part of the experience was realizing that my unconscious brain recognized it long before I processed it consciously.