I know some of our west-coast kitties and owners can speak to this.

We had a 5.0 earthquake in the Midwest yesterday - my spouse was home. Ritz was asleep near the patio door. The first wave hit, and she immediately jumped up, going into massive "fuzztail" mode...

The second jolt hit and she ran over to my spouse, gave him this worried look, then hopped into his lap (Ritz almost never resorts to "lap cat" unless you lure her there with a warm towel from the drier). She stayed there for about 15 minutes.

I know that 5.0 is a little "tickle" by comparison to California quakes - do your kitties get nervous?