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Standard homeowners insurance does not cover earthquakes. In California, where most US earthquake insurance is sold, that leaves you choosing between two sources: the California Earthquake Authority, a publicly managed but privately funded organization, and private earthquake insurers. They are not the same product, and the differences matter most at claim time.
If you are still deciding whether earthquake coverage is worth it at all, read our earthquake insurance cost guide first. This post assumes you want coverage and need to pick a carrier.
What the CEA is
The CEA is not a government agency and not a typical insurer. It was created by the California legislature after the 1994 Northridge earthquake, when private carriers were fleeing the state. It sells policies only through participating homeowners insurers, so you buy CEA coverage from your regular insurance company, and the CEA stands behind the earthquake part. It is the largest earthquake insurer in the state by far.
CEA policies are known for two things: standardized coverage options and high deductibles. Deductibles typically run 10% to 25% of your home’s insured value, which means on a $500,000 home you are covering the first $50,000 to $125,000 of damage yourself. Premiums are regulated, the policy language is uniform no matter which participating carrier sells it, and the CEA’s financial strength is publicly reported.
What private carriers offer
Private earthquake insurers compete on flexibility. Where the CEA offers a fixed menu, private carriers may offer lower deductibles, sometimes as low as 2.5% to 5%, higher limits for additional living expenses, and coverage for things the CEA handles narrowly, like masonry veneer or certain outbuildings. Some bundle earthquake with other coverage in ways the CEA cannot.
The tradeoff is variability. Private policy language differs by carrier, financial strength varies, and premiums are not regulated the way CEA rates are. A private carrier can also non-renew or reprice more freely after a major event reshapes its view of the risk. None of this makes private coverage bad, but it makes comparison shopping more work.
How to compare them
Line up the same home against both options and compare four things:
- Deductible as dollars, not percent. A 15% deductible on a $600,000 home is $90,000 out of pocket before the policy pays anything. A private policy with a 5% deductible on the same home is $30,000. That $60,000 difference is the real comparison, not the premium.
- What the deductible applies to. CEA deductibles apply per coverage part in some configurations. Make sure you know whether one deductible covers the whole claim.
- Additional living expenses. After a major quake, you may be out of your home for months. Compare the daily and total limits for temporary housing, since this is where cheaper policies often cut corners.
- Contents and retrofitting. Check contents limits and whether either option rewards seismic retrofits. Bolting, bracing, and strapping the water heater can cut premiums with some carriers and, more importantly, cut damage.
Which one fits which homeowner
The CEA suits homeowners who want a standardized, regulated product from an entity built specifically to survive a catastrophic quake. The financial backing is transparent, the claims process is uniform, and you buy it through the insurer you already have. The high deductible is the price of that stability.
Private coverage suits homeowners who cannot stomach a six-figure deductible, who want higher living-expense limits, or whose homes have features the CEA menu does not handle well. Older homes, homes with significant masonry, and higher-value homes often price better or cover better on the private market.
Either way, do the deductible math in dollars before you look at the premium. Earthquake insurance is one of the few products where the deductible, not the premium, is the most important number on the page. And remember that neither option covers everything: both exclude land, and both have limits on landscaping and external structures, so read the policy, not the brochure.
