Simi Valley sits about eight miles from the Northridge epicenter and roughly the same distance from the San Andreas's southern segment. The 1994 Northridge quake is not a historical curiosity here — it is why almost every house built before 1990 has been retrofitted, why every homeowners policy excludes earthquake damage, and why the California Earthquake Authority exists. I'm Brian Cooper, REALTOR(R) at eXp Realty (DRE# 01434286). This is a plain-English read on CEA premiums, deductibles, the Brace+Bolt subsidy, and how to decide whether earthquake coverage is right for your situation.
Quick Answer
The California Earthquake Authority is not a state agency in the way most people assume. It is a privately funded, publicly managed pool — created by legislation in 1996 after the Northridge earthquake — that issues earthquake policies through participating homeowners insurance companies. About two-thirds of California homeowners with earthquake insurance are insured by CEA. The rest carry private earthquake policies from a handful of specialty carriers.
Whether you should carry it in Simi Valley depends on three things: how much equity you have at risk, your foundation and retrofit status, and your personal tolerance for a large deductible. CEA premiums on a Simi Valley 2,200 sqft house with a raised foundation, built in 1985, unretrofitted, with a 15% deductible run roughly $2,400-$3,200 per year in 2026. The same house post-Brace+Bolt retrofit drops to $1,800-$2,400. The same house on a post-1980 slab in good soil drops further. The decision matrix is real, not theoretical.
What CEA is — and what it isn't
CEA was created by California Insurance Code section 10089 et seq. after Northridge, when the private insurance market threatened to withdraw from California homeowners insurance entirely. The compromise: insurers could sell homeowners policies without earthquake coverage, but had to offer earthquake through the CEA pool. Today CEA issues policies through roughly twenty participating insurers — your homeowners carrier is the door, but CEA is the actual policy.
CEA is not state-funded. The pool is capitalized by member-insurer contributions, policyholder premiums, reinsurance contracts (CEA buys reinsurance from the global market), and post-event assessments on member insurers. The State of California does not stand behind claims with general fund money. This matters because CEA's claims-paying capacity is finite — currently above $20 billion in available capital — and a major event could exhaust it.
CEA is also not the only option. Specialty private carriers like GeoVera, ICW, Palomar, and a few Lloyd's syndicates write residential earthquake. Private policies can offer lower deductibles (some down to 5% or even flat-dollar), broader coverage for contents and ALE, and sometimes lower premiums on retrofitted homes. The trade-off is rating volatility and underwriting tightness in high-risk ZIPs.
Why standard homeowners doesn't cover earthquake
Every standard homeowners policy in California — ISO HO-3, HO-5, and equivalents — contains an earth-movement exclusion. The exclusion eliminates coverage for damage caused by earthquake, earthquake-induced landslide, volcanic eruption (except for ensuing fire), and similar events. The exclusion is uniform across carriers because the industry cannot pool the risk profitably without either separate underwriting or a pooled vehicle like CEA.
California Insurance Code section 10081 requires every residential homeowners insurer in the state to offer earthquake coverage. The offer must be made at issuance and at every renewal. Most California homeowners decline — statewide take-up is around 13-15%, though it skews higher in highest-risk ZIPs and in Bay Area cities with Hayward Fault exposure. In Simi Valley I see take-up around 18-22% in my client base. That is above the state average but still a minority position.
The Northridge 1994 history that drives Simi/Conejo premiums
The Northridge earthquake on January 17, 1994 was a magnitude 6.7 event with an epicenter in the Reseda neighborhood of Los Angeles, about eight miles from central Simi Valley. It caused 60 deaths, an estimated $20 billion in property damage, and the largest single insurance loss in U.S. history to that date. Two effects on the current insurance landscape matter to Simi Valley homeowners.
First, Northridge revealed structural weaknesses in the wood-frame, raised-foundation homes typical of the San Fernando and Conejo Valleys. Homes that slid off their foundations because they were not anchored — a $3,000-$6,000 retrofit problem — became total losses. This is the science behind the Earthquake Brace+Bolt program: bolt the sill plate to the foundation, brace the cripple walls with plywood, and the structure stays on the foundation in the next event.
Second, Northridge mapped where the worst shaking occurred. The USGS ShakeMap and the California Geological Survey site-class data still drive CEA rating. Simi Valley sits on a mix of alluvium and older sediments. The flat eastern and central portions of the valley have softer site classes (amplifying shaking), while the hillside tracts in Wood Ranch, Big Sky, and the southern Simi Hills sit on firmer ground. Soil site class is a real input to your CEA premium.
What drives your CEA premium
CEA premiums are not random. The rating formula uses a handful of structural and geological inputs, and each lever you can pull has a known effect. Here are the drivers ranked by impact on a typical Simi Valley single-family home.
| Driver | Effect | Magnitude |
|---|---|---|
| Year built | Pre-1980 wood frame rates highest | 30-50% premium swing |
| Foundation type | Slab on grade > raised perimeter > post-tension | 10-25% swing |
| Soil site class | Soft alluvium amplifies shaking | 10-20% swing |
| Retrofit status | Documented EBB / equivalent retrofit | Up to 25% premium credit |
| Deductible chosen | 5/10/15/20/25% of dwelling coverage | Each 5% step cuts premium ~10-15% |
| Number of stories | Two-story rates higher than one | 5-10% swing |
| Cripple walls present | Unbraced cripple walls = higher rate | 5-15% surcharge |
| Optional coverages added | Contents, ALE, exterior pool/spa, masonry chimney | Adds to base premium |
2026 deductible options
CEA offers five deductible options: 5%, 10%, 15%, 20%, and 25% of dwelling coverage. The deductible is applied separately to dwelling, contents, and ALE (loss of use) under the standard CEA Homeowners policy. The 5% option is the newest and is considerably more expensive than 15%-25%. Most Simi Valley CEA policyholders I see choose 15% or 20%, which balances catastrophic protection against premium cost.
Worked example. A $750,000 dwelling coverage Simi Valley home at 15% deductible carries a $112,500 deductible. At 25% it carries a $187,500 deductible. That is a serious number, and it is the reason CEA is best understood as catastrophic protection, not first-dollar coverage. CEA pays when the structural damage from a quake exceeds your deductible. It does not pay for cosmetic cracks, broken china, or a $5,000 chimney repair.
If you carry a $1M dwelling limit, your 15% deductible is $150,000. Buyers should hold sufficient liquid reserves to absorb the deductible before adding CEA to their stack. If the deductible would force a refinance or a forced sale, the coverage isn't doing what catastrophic insurance should do.
Earthquake Brace+Bolt — the $3,000 subsidy worth knowing
The Earthquake Brace+Bolt (EBB) program is a joint CEA / California Governor's Office of Emergency Services initiative that subsidizes seismic retrofits on pre-1980 wood-frame homes with raised foundations and cripple walls. The subsidy is up to $3,000 toward the cost of the bolting and bracing work. The retrofit itself typically costs $3,000-$7,000 in Ventura County, so the subsidy covers most of the bill for a basic retrofit.
Once retrofitted, the homeowner submits the engineer-signed Standard Plan A documentation to their CEA agent. CEA applies a premium credit of up to 25%. On a $2,800 baseline premium that is $700 per year, every year, going forward. The math is straightforward — the retrofit pays for itself in premium credits in about five years, and provides actual structural resilience in the next event.
EBB has limited annual ZIP-code allocations, so registration is not always immediate. Simi Valley ZIPs (93063, 93065) have historically had allocations available, but the program opens and closes by ZIP each enrollment season. Check earthquakebracebolt.com for current enrollment windows. If your home was built post-1980 with a slab foundation, EBB doesn't apply — your structural resilience is already higher and your CEA premium is already lower.
When CEA makes sense — and when it doesn't
CEA makes sense when the dwelling represents most of your net worth, when you don't hold liquid reserves equal to a 15-25% deductible plus six months of expenses, when the home is on a mortgage that would create a deficiency if the structure was destroyed, and when the home is pre-1980 wood frame on a raised foundation in a high-amplification soil class. Most Simi Valley homes built in the 1960s and 1970s in central or eastern Simi fit several of those criteria.
CEA makes less sense when the homeowner has substantial liquid reserves (multiple times the deductible), when the structure is a recent post-tension slab build on firm soil (lower objective risk), when the home is owned free and clear and the homeowner could financially absorb loss of the dwelling, or when premium cost is displacing other coverage that is more likely to trigger (liability, wildfire, flood). It is a personal-financial decision, not a universal one.
How to file a CEA claim
If an earthquake damages your insured home, you file the claim with your participating homeowners insurer — Allstate, Farmers, Mercury, USAA, etc. — who acts as servicing carrier for CEA. Document everything: photos, video, an itemized list of damage, and contractor estimates. CEA claims are adjusted under the policy terms, including the percentage deductible. You will not receive a check until damage assessed by the adjuster exceeds your deductible.
Bring documentation of any retrofit work to the claim. If you did a Brace+Bolt retrofit and have the engineer-signed plan and city permit, structural-failure exclusions are harder for the carrier to apply. If you did the retrofit without documentation, the value is lost at claim time. Keep retrofit paperwork in a fireproof safe or off-site (digital backup) — the documentation matters more in the moment than the homeowner usually realizes.
Frequently Asked Questions
Is the California Earthquake Authority a state agency?
No. CEA is a publicly managed but privately funded insurance pool created by California Insurance Code section 10089 et seq. It is not backed by state general funds. Claims-paying capacity comes from member-insurer contributions, premiums, and reinsurance.
How much does CEA insurance cost in Simi Valley?
Typical 2026 premiums on a $700K-$1.2M Simi Valley home range from $1,800-$4,200 per year depending on year built, foundation, soil site class, retrofit status, and deductible chosen. A retrofitted post-1980 slab home is at the low end; a pre-1980 raised-foundation home unretrofitted is at the high end.
What is the deductible on CEA?
5%, 10%, 15%, 20%, or 25% of dwelling coverage. CEA applies the percentage separately to dwelling, contents, and loss of use. On a $750K dwelling at 15% deductible, the deductible is $112,500.
Does CEA cover my detached garage and pool?
Standard CEA Homeowners covers the dwelling. Detached structures, swimming pools, masonry chimneys, and exterior masonry veneer require optional add-on coverages with separate sub-limits and premiums.
What is Earthquake Brace+Bolt?
A joint CEA / CalOES program that subsidizes up to $3,000 of the cost to retrofit pre-1980 wood-frame homes with raised foundations. A documented retrofit qualifies for a CEA premium credit up to 25%.
How does Northridge 1994 affect today's premiums?
Northridge is the loss event that drives the modern CEA rating model. Soil site class data, structural failure patterns, and ZIP-code-level loss experience from the 1994 event all flow into current premiums in Simi Valley and the Conejo Valley.
Should I buy private earthquake insurance instead?
Sometimes. Carriers like GeoVera, ICW, and Palomar offer lower deductibles and sometimes lower premiums on retrofitted homes. Ask your insurance broker for a CEA vs private quote side by side. The right answer varies by structure and ZIP.
Can I add CEA mid-policy or only at renewal?
California Insurance Code 10081 requires offer at issuance and every renewal. You can usually bind mid-term through your servicing carrier subject to underwriting. There is often a brief moratorium on binding new earthquake policies immediately after a significant seismic event.
