"Trembling dishes", "Shaking chandeliers", "Items… falling down from the shelves" and cats "mewing miserably". All indications, said the roughly translated leaflet I’d found, to help you recognise an earthquake. Just in case you haven’t guessed why the building’s collapsing around you. It also helpfully advises you pack some unbreakable dishes, just to be on the safe side. Probably best to stick to camping.