Ecekat,
Dave supplied the BEST answers.
You best bet is to purcahse an insurance policy. Your renters or homeowners policy will cover your personal property including collectibles, statues, figures. It is VERY IMPORTANT you make sure your home/renters insurance policy has an EARTHQUAKE ENDORSEMENT, and damage caused by an earthquake is coveraged. If you want to go above and beyond you can purchase a COLLECTORS INSURANCE policy. I beleive these go for about couple hundred dolllars a year.
I reccomend keeping record of your statues (microsoft Excell), with value, edition size ...ect. Also be sure to photograph ALL of your pieces to prove you did infact own that high dollar piece you're making a claim for. This way if an earthquake does hit you can present the insurance company proof of what you paid and actual photos of the collectibles before they were damaged.
I know this is a no-brainer, but if you are aware an earthquake is going to hit, i would box the statues and colelctibles up BEFORE the ground starts trembling.
I hope this helps.