Earthquake insurance in Oakland

The Hayward Fault runs through the city

The Hayward Fault runs along the base of the East Bay hills through Fremont, Hayward, Oakland and Berkeley, and hundreds of homes are built along its trace. It creeps, slowly offsetting curbs and buildings, but USGS scientists say creep and small quakes release only about a third of its long-term movement; the rest comes out in large earthquakes.

The last large one was on October 21, 1868, a magnitude 6.8 that killed about 30 people. Oakland, then a town of mostly wood-frame buildings, lost brick walls and chimneys. The last six large quakes on the southern fault came 95 to 183 years apart, about 150 on average.

• Bay Area, magnitude 6.7 or largerAbout 74 percent chance of at least one in the next 30 years, in USGS's September 2026 recalculation, up from 72 percent in its 2014 forecast.
• Hayward and Rodgers Creek FaultsAbout 34 percent, the highest of any single Bay Area fault system.
• Fault zoneLand along the trace is in a state Earthquake Fault Zone, which a seller must disclose.

The flatlands, the fill and what Loma Prieta showed

The 1989 Loma Prieta earthquake was centered in the Santa Cruz Mountains, yet 42 of its 63 deaths came in Oakland, when the double-deck Cypress structure of Interstate 880 collapsed. The section that fell stood on fill over soft bay mud, which USGS found shook up to twice as hard as the firmer ground under the sections that stood.

That ground is mapped. The California Geological Survey's 2003 hazard zone report for the Oakland West quadrangle puts most of the Alameda County land it maps, which takes in West Oakland, downtown, the Berkeley flats, Emeryville and Alameda, in a liquefaction zone; only some higher ground is left out. It zones all fill over bay mud, which is extensive west of Interstate 880 near downtown and along the bay and Lake Merritt, and it records 1989 liquefaction at the Bay Bridge approach, Port of Oakland terminals and the Lake Merritt Channel.

• Check the lot. The state's EQ Zapp map shows whether an address is in a liquefaction, landslide or fault zone; so does the natural hazard disclosure from your purchase.

How the policy and the deductible work

You cannot buy from the California Earthquake Authority directly; its policies come through the participating company that writes your homeowners, condo or renters policy. A few companies sell standalone earthquake policies, and I compare those with the CEA route.

• A percentage, not a fixed amountCEA homeowners deductibles are 5, 10, 15, 20 or 25 percent of the dwelling limit.
• Older frame houses start at 15The 5 and 10 percent choices are closed to dwelling limits above one million dollars and to frame houses built before 1980 that are not on a slab and have no verified retrofit.
• Living expensesLoss of use is paid with no deductible.

By California law, fire caused by or following an earthquake falls under the homeowners or renters policy. How earthquake coverage works statewide and what code upgrade coverage does.

Retrofits, the CEA discount and Brace + Bolt in Oakland

A bolted and braced one-to-four unit, wood-frame house built before 1980, on a raised or other non-slab foundation and with the water heater strapped to the frame, can earn up to 25 percent off the CEA premium, with the top tier for raised foundations built before 1940. A contractor or structural engineer completes the CEA's Dwelling Retrofit Verification form, and a verified retrofit reopens the 5 and 10 percent deductibles for dwelling limits up to one million dollars.

When I checked the Earthquake Brace + Bolt ZIP code list in October 2026, every Oakland residential ZIP code I checked (94601 to 94603, 94605 to 94612, 94618, 94619 and 94621) was on it, but registration was closed. The grant is for pre-1980 wood-frame houses with a raised foundation or crawl space on level ground or a slight slope, and houses the owner does not live in are now eligible; a companion Earthquake Soft-Story grant, listed for the same Oakland ZIP codes, covers houses with living space over the garage. Getting a permit or starting work before you are accepted makes the retrofit ineligible for a grant. Oakland also charges a flat, reduced permit fee for voluntary retrofits of one- and two-story houses and duplexes.

Oakland Hills houses

Above the fault, many houses sit on steep lots, on posts or poles, or on tall cripple walls. Oakland's voluntary retrofit code sends poles embedded in the ground, cripple walls over four feet and slopes steeper than three to one to an engineered design rather than the standard plan, and Brace + Bolt is limited to houses on level ground or a slight slope, so many of them fall outside it.

• The discount still has a foundation test. A post-and-pier house qualifies for the CEA discount only with a continuous foundation under all exterior bearing walls, the house anchored to it and the cripple walls braced.
• Fire is the second half of the risk. The 1991 Tunnel Fire in these hills killed 25 people and destroyed 2,449 houses and 437 apartment and condo units, and the USGS HayWired scenario for a Hayward Fault quake includes housing lost to fire. Fire after a quake falls on the homeowners policy, so its limit has to reflect a hillside rebuild. High-value homes.
• If the house moved to the FAIR Plan, the CEA is still open to it: the FAIR Plan is a CEA participating company and offers a separate CEA policy alongside its Dwelling Fire policy. I compare that with standalone earthquake policies. FAIR Plan and difference in conditions.

Apartments and condos under the soft-story ordinance

Oakland Ordinance 13516, in effect since January 22, 2019, and codified in Municipal Code Chapter 15.27, requires evaluation and retrofit of wood-frame buildings with five or more units, apartments and condominiums alike, that were permitted before January 1, 1991 and have a vulnerable ground story or crawl space, such as tuck-under parking or storefronts. A 2014 study by the city and the Association of Bay Area Governments counted about 1,300 soft-story buildings in Oakland, with some 22,000 rental units.

• Tier 1Twenty or more units, or owners who skipped the city's 2009 screening program. Final inspection due February 21, 2023.
• Tier 2Five to nineteen units. Due February 21, 2024.
• Tier 3The soft story holds homes or shops. Due February 21, 2025.

All three final deadlines have passed. The city takes extension and exemption requests and publishes a list of subject properties, most recently dated May 2026. Underwriters typically ask for the final inspection sign-off, and an open case draws questions. The state's Earthquake Multi-Unit Retrofit grant for pre-1991 wood-frame buildings of five to ten units lists Oakland as eligible; its 2026 registration ran from August 19 to September 30. Apartment building insurance and landlord policies.

Condo owners and associations

If the master policy leaves earthquake off, shake damage typically lands on reserves or a special assessment. If it includes it, the deductible is usually a percentage of the building's value, and that bill can also come back to owners. The association's annual budget report must summarize its earthquake policy, limit and deductible, so start there.

For a unit owner, loss assessment is an optional coverage on the CEA condo policy, with limits up to one hundred thousand dollars and its own percentage deductible; it pays your share of certain assessments the association charges owners. Ask how assessments are split and whether the building is on the soft-story list. Condo insurance and how loss assessment works.

What to send me

• Your declarations page for the homeowners, condo or landlord policy, and any earthquake policy.
• The address and, if you have it, the natural hazard disclosure.
• Year built, square footage and foundation: slab, raised with cripple walls, or posts and poles on a slope.
• Retrofit paperwork, including the permit, final sign-off and any CEA Dwelling Retrofit Verification form.
• For a condo or association: the insurance summary from the annual budget report, whether the master policy includes earthquake, its deductible and the unit count.
• For a building of five or more units: its soft-story tier, retrofit permit and final inspection sign-off, or any exemption or extension letter.

Common questions

General information about earthquake insurance in Oakland as of October 2026, not legal advice. CEA deductible rules and discounts, state retrofit grant rounds and eligible ZIP codes, and the City of Oakland's soft-story deadlines, extensions and subject property list all change; check your policy wording, the grant program's ZIP code search and your building's status with the City of Oakland Planning and Building Department. Coverage depends on underwriting and the terms, conditions and exclusions of the policy actually issued.