When we first moved into our house, we noticed the house vibrated a bit when there was a train passing several blocks north of us, but it was odd how strong and close it felt for being over a half a mile away. We got used to it though, so it wasn’t very noticeable after a few months.
A few years later I realized that the train tracks over half a mile away turn and go into a tunnel that runs under our neighborhood, directly under the next block over and it made a lot more sense.
