In Spain last week, experienced my first real earthquake.. Apart from the buildings shaking, I did a bit of trembling myself. https://earthquake-report.com/2018/05/11/minor-earthquake-spain-may-11-2018/ Asking around, because no one seemed to be too bothered about it, it seems it's quite normal for that area! So, if your in Spain, and the earth moves for you, don't worry, it's quite normal