I used to deliver training courses in Thousand Oaks in California. The building was single-storey with a suspended roof, that didn't necessarily make it earthquake-proof but the building survived the Northridge 'quake (a few panes of glass fell out) when all around it sustained some sort of damage. I used to have to give Earthquake survival instructions at the start of every course. These usually consisted of "don't panic and get under a table" (And the tables were rather robust, it has to be said). My apartment in Ventura had a "strongpoint" (a concrete arch in the otherwise mainly wooden structure) the advice was to get under that in the event of an earthquake. Anti-earthquake spray does not work!