Earthquake Insurance in California: Worth It or Not?

Roughly 90 percent of California homeowners do not carry earthquake insurance. Roughly 100 percent of California homeowners are in earthquake country. Whether that math is reasonable depends on details specific to your home, your finances, and your tolerance for tail risk.

Here's an honest look at the decision.

Why earthquakes are excluded from standard policies

Standard homeowners insurance covers fire, wind, water from above (rain, hail, some leaks), theft, and liability. It does not cover damage from earth movement — earthquakes, landslides, sinkholes — regardless of cause.

To get earthquake coverage in California, you have two options: a policy from the California Earthquake Authority (CEA), or a private earthquake insurer. The CEA is by far the most common.

How CEA policies work

Deductibles are high

CEA deductibles range from 5 percent to 25 percent of your dwelling coverage. On a $600,000 dwelling, a 15 percent deductible is $90,000. That's the threshold of damage before the policy pays a single dollar.

They cover the dwelling, some personal property, and loss of use

You can choose how much of each. More coverage and lower deductibles cost significantly more in premium.

Premiums vary enormously by location and home characteristics

Two homes a mile apart can pay very different rates based on soil type, fault proximity, and the home's construction. A wood-frame home built after 1980 in lower-risk soil might pay $800 a year. A pre-1979 home on alluvial soil near a fault might pay $3,500.

The actual decision: who benefits and who probably doesn't

Earthquake insurance probably makes sense if...

• Your home is your single largest asset and a total loss would be financially devastating
• You have a mortgage you couldn't pay if the home was destroyed
• Your home is older (pre-1979 especially) and not retrofitted
• You live in a known high-risk zone (close to a major fault, on alluvial soil)
• Your home is a one-story wood-frame structure (lower deductibles relative to total replacement cost)

Earthquake insurance probably does NOT make sense if...

• Your home is paid off and the loss would hurt but wouldn't ruin you
• You have enough liquidity to fund the high deductible plus partial repairs out of pocket
• You're in lower-risk soil and your home is newer with seismic-resistant construction
• The premium exceeds about 1 percent of your dwelling value per year (math gets hard to justify)

What about retrofits?

Brace and bolt programs (CRMP, EBB) provide grants of $3,000 to $7,000 to retrofit pre-1979 homes. Retrofitted homes qualify for a CEA hazard reduction discount of up to 25 percent.

If your home is older and unretrofitted, the retrofit itself is often the highest-value earthquake risk reduction you can do. It reduces both the chance of catastrophic damage and the ongoing cost of the policy.

What the policy will and won't pay for

Will

• Repair or rebuild costs above your deductible, up to your policy limits
• Limited personal property coverage (you select an amount)
• Additional living expenses if the home is uninhabitable
• Emergency repairs to prevent further damage

Won't

• Landscaping, pools, decks, fences (mostly excluded or sub-limited)
• Detached structures beyond a small sub-limit
• Damage to vehicles (those would be claimed under auto comprehensive)
• Damage below your deductible — which on most homes is tens of thousands of dollars

A practical way to decide

Three questions:

1. What is the realistic worst case for my home?

Look up your home on the USGS Earthquake Hazards Program or the California Geological Survey site. Note the fault distance, soil classification, and shaking probability.

2. Could I financially survive a total loss of the home without insurance?

If yes, you can self-insure. If no, the question becomes whether the premium is acceptable for the protection.

3. Does the premium math make sense?

Compare annual premium to the realistic probability of catastrophic damage multiplied by the typical recovery cost. If a $2,000 annual policy protects you against a 1-percent annual chance of $400,000 in damage, the expected value math is roughly $4,000 of protection per year of premium. That's a reasonable buy.

If the same $2,000 annual policy is on a low-risk newer home with a 0.1-percent annual chance of similar damage, the expected value is $400 of protection — and you're paying $2,000 for it. That's a less obvious buy.

A reasonable middle ground

For many California homeowners, a high-deductible CEA policy (20 to 25 percent) provides catastrophic coverage at a fraction of the premium of a low-deductible policy. You self-insure the moderate damage scenarios and the policy covers the financial-ruin scenario.

That tradeoff — accepting a big deductible to make the catastrophic coverage affordable — is how most informed California homeowners who do carry earthquake insurance structure their policy.

If you'd like a real quote tailored to your home's age, location, and construction, we can run the numbers. The answer is genuinely different for every home.