Earthquake Insurance Explained: What It Covers, Deductibles, and Who Needs It

By Ahmad Dogar
FitCreeper Finance · Published October 2026 · Educational only — not personalized financial, legal, or tax advice

How this article was made: Drafted with AI assistance, then checked line by line against the primary sources listed at the end of this page (the Insurance Information Institute (Triple-I), NAIC consumer guidance on earthquake deductibles and home insurance, the California Earthquake Authority, FEMA, and the U.S. Geological Survey), fetched on October 16, 2026. Worked examples use simple illustrative numbers, not real accounts. Rules, policy wording, and state laws change, so re-check the linked sources and your own documents before you act.

Most homeowners learn about earthquake insurance the same way they learn about flood insurance: after reading that their standard policy does not cover it. Earthquakes can crack foundations, collapse walls, and destroy belongings in seconds, yet the policy most people rely on excludes the shaking itself. Coverage exists, but it works differently from a normal homeowners policy, especially when it comes to deductibles.

This guide explains what a standard homeowners policy does and does not pay after an earthquake, what earthquake insurance covers, how percentage deductibles work, what the California Earthquake Authority offers, and a simple framework for deciding whether earthquake coverage makes sense for you. It is general education, not a recommendation to buy a specific policy.

Why homeowners insurance excludes earthquakes

Earthquake damage under a standard homeowners policy versus an earthquake policy: the homeowners policy excludes shaking damage but generally covers fire following a quake, while an earthquake policy covers direct shaking damage to the house, belongings and loss of use, subject to a high deductible.

Triple-I's guide to earthquake insurance for homeowners is direct: "Homeowners and renters insurance does not cover earthquake damage." The NAIC says the same in its consumer guidance: "Homeowners and business insurance policies do not cover earthquake damage." Triple-I's coverage table lists earthquake alongside flood among the main standard exclusions.

There is one important nuance. Triple-I notes that a standard policy "will, however, generally cover losses from fire following a quake and, if such a fire makes your home unlivable, cover the additional living expenses." The NAIC adds that indirect damage, "such as fire and water damage from burst gas and water pipes, is covered under a homeowners policy," while earthquake insurance "typically only covers direct damage to the property resulting from the shaking."

So after a quake, you may have two policies responding to different parts of the same event. For a full picture of what your base policy excludes, see what homeowners insurance covers and does not cover.

Earthquake risk is not just a California issue

Earthquake risk facts from federal agencies: USGS says nearly 75 percent of the United States could experience damaging earthquake shaking, FEMA says only about 10 percent of Californians have earthquake insurance, and Triple-I says some areas such as parts of Oklahoma have seen more seismic activity.

It is easy to assume earthquakes are only a West Coast concern. Federal data says otherwise. The U.S. Geological Survey's latest National Seismic Hazard Model found that nearly 75% of the United States could experience damaging earthquake shaking. The NAIC's homeowners page points out that "the New Madrid fault runs through the Midwest United States, an area not perceived as having earthquakes occurring frequently," and that in some areas coverage "is typically inexpensive and should be considered." Triple-I adds that parts of Oklahoma "are experiencing more seismic activity as a result of oil drilling efforts."

Yet few people carry coverage. FEMA notes that despite experiencing 90% of the country's earthquakes, only 10% of California's residents have earthquake insurance, and that many insurers stopped insuring earthquakes in the 1990s after projections suggested a major quake could bankrupt them.

How earthquake insurance works

Earthquake coverage is sold in two main ways:

As an endorsement added to your homeowners policy.
As a separate policy, either from a private insurer or, in California, from the California Earthquake Authority (CEA), which Triple-I describes as "not-for-profit."

Triple-I says earthquake coverage "is available in the form of a separate policy or an endorsement from most private insurers." A typical policy is organized much like a homeowners policy: coverage for the dwelling, personal property, and loss of use (additional living expenses), sometimes with extra coverage for building code upgrades or emergency repairs. Each part may have its own limit and its own deductible.

Rates vary widely. Triple-I notes they range "from fairly inexpensive in lower risk areas to a relatively high cost in places that are more prone to earthquakes." If you are thinking about buying in an earthquake-prone area, Triple-I advises looking into the cost of coverage "to understand the home's true cost."

Earthquake deductibles: the part that surprises people

Illustrative earthquake deductibles on a 400,000 dollar dwelling limit: 5 percent equals 20,000 dollars, 10 percent equals 40,000 dollars, 15 percent equals 60,000 dollars, and 25 percent equals 100,000 dollars.

Earthquake deductibles are almost always a percentage of the coverage limit, and they are much higher than standard homeowners deductibles. Sources describe a range:

Triple-I: "usually from 5 to 15 percent of the policy limit."
NAIC: "usually 10%–20% of the coverage limit." Its example: "if your home is insured for $200,000 a 10% deductible would be $20,000."
CEA: dwelling deductible choices of 5%, 10%, 15%, 20% or 25%.

Illustrative math (simple percentages, not a quote): On a $400,000 dwelling limit, a 5% deductible is $20,000, 10% is $40,000, 15% is $60,000, and 25% is $100,000. Damage below the deductible is paid by you.

The NAIC warns that "if your deductible is too high, you may not be able to use your earthquake insurance because the damage may not be greater than the deductible." FEMA makes a similar point: most homes affected by an earthquake "would experience damage that does not exceed their insurance deductibles." That does not make coverage useless; earthquake insurance is catastrophe protection, designed for the severe loss you could not otherwise absorb.

The NAIC also notes that different parts of the policy, such as the home, belongings and outside structures, may each have separate deductibles, and that "the deductible you pay is considered an uninsured loss," for which federal disaster loans may be available.

California: what a CEA policy includes

California Earthquake Authority homeowners coverage parts: dwelling with 5 to 25 percent deductibles, personal property, loss of use with no deductible, building code upgrade with 10,000 dollars included, and emergency repairs with no deductible for the first 1,500 dollars.

Because so much U.S. earthquake risk is in California, the CEA's structure is worth knowing even if you live elsewhere, as many private policies follow similar patterns. According to the California Earthquake Authority:

Home (dwelling): covers earthquake damage to your house and attached structures. Deductibles are 5%, 10%, 15%, 20% or 25%. Homes with a dwelling limit over $1,000,000, or pre-1980 homes on a raised foundation without a verified retrofit, are eligible only for 15%, 20% or 25%.
Personal property: furniture, appliances, clothing and other contents.
Loss of use: the extra cost of living elsewhere while your home is repaired; the CEA says this coverage "never has a deductible."
Building code upgrade: $10,000 is included with every CEA homeowner policy, with higher limits available.
Emergency repairs: "There is no deductible for the first $1,500."

You buy a CEA policy through your home insurance company or agent. Triple-I notes the CEA offers belongings coverage "with a separate, lower deductible."

Aftershocks and the 72-hour rule

NAIC note on earthquake events: shaking events within a 72 hour period are typically one event with one deductible, while aftershocks after 72 hours could be a second claim with a second deductible.

A large quake is usually followed by aftershocks. Does each one trigger a new deductible? The NAIC explains that typically "all earthquake events in a 72-hour (three-day) period are considered one event — with one claim and one set of deductibles," while aftershocks more than 72 hours later "could mean a second claim with a second set of deductibles." The window can vary by policy.

The NAIC also recommends notifying your insurer after a quake "even if you don't think the damage to your home is greater than your deductible," and having a qualified professional inspect for hidden structural damage.

How to decide if you need earthquake insurance

Five questions to decide on earthquake insurance from Triple-I: could you afford to rebuild, replace belongings, pay for temporary housing, what is your local risk, and what would the deductible be in dollars.

Triple-I suggests three questions:

Can you afford the cost of rebuilding or repairing your home if it is damaged?
Can you replace your personal belongings if they are damaged or destroyed?
Can you afford temporary housing and other expenses if structural damage makes your home uninhabitable?

Add two more of your own: what is the seismic risk where you live, and what would the deductible be in dollars? If the honest answer to the first three questions is "no," and your area has meaningful risk, earthquake coverage deserves a quote. If the deductible would exceed what you could ever realistically pay, ask about lower deductible options and compare the premium difference.

Illustrative scenario (made-up numbers): A homeowner with a $350,000 rebuild cost and $40,000 in savings chooses a 15% deductible ($52,500). After a severe quake causes $250,000 of structural damage, the policy pays the damage above the deductible, up to limits, while the homeowner covers the first $52,500. Without coverage, the homeowner would face the full $250,000. The deductible is large, but the policy turns a financially devastating loss into a serious but survivable one.

Lowering your earthquake financial risk

Ways to reduce earthquake financial risk: secure the home through a verified retrofit where eligible, strap water heaters and heavy furniture, keep an emergency fund for the deductible, store a home inventory offsite, and check if fire after a quake is covered.

Ask about retrofitting. The CEA's rules show that a verified retrofit can change which deductibles an older home is eligible for.
Secure heavy items. Strapping water heaters and anchoring tall furniture can reduce damage and injury.
Plan for the deductible. An earthquake deductible can be tens of thousands of dollars. Our guide on how much to keep in an emergency fund can help you think about reserves.
Keep an inventory off-site. Photos and receipts make any claim easier.
Review flood risk too. Flood is another separate policy; see when homeowners need flood insurance. Our homeowners insurance beginner guide explains the base coverages.

What earthquake insurance may not cover

Earthquake policies are narrower than many buyers expect, so read the exclusions as carefully as the coverages:

Indirect damage is usually handled elsewhere. The NAIC says earthquake insurance "typically only covers direct damage to the property resulting from the shaking," while fire and water damage from burst gas and water pipes falls under the homeowners policy. Keep both policies in force.
Separate parts, separate limits. The NAIC notes your home, belongings and outside structures such as detached garages and fences may each have individual deductibles. A dwelling-only policy may leave contents uninsured.
Damage below the deductible is yours. As FEMA and the NAIC both point out, many quakes cause damage that never exceeds a percentage deductible.
Other earth movement may differ. FEMA notes standard homeowners insurance does not cover damage from land movement or landslides; ask whether your earthquake policy treats landslide or sinkhole damage differently.

Renters and condo owners

Earthquake risk is not only a homeowner issue. Triple-I's coverage guide notes that earthquake coverage is available from most insurers "as a separate policy or an endorsement to your homeowners or renters policy." Renters may want contents and loss-of-use coverage, because they could be displaced even if they own no building. Condo owners should also check whether the association's master policy includes earthquake coverage and how a large special assessment after a quake would be handled, since the unit owner's own policy may need to respond.

How to shop for earthquake coverage

Ask for quotes at several deductible levels and compare both the premium and the deductible in dollars.
Check every coverage part: dwelling, personal property, loss of use, building code upgrade and emergency repairs.
Ask how aftershocks are treated and how long the event window is.
Ask whether retrofitting or the home's age and foundation affect eligibility, as they do under CEA rules.
Contact your state insurance department if you have trouble finding coverage; Triple-I recommends checking with your insurance professional or state insurance department about availability.

FAQ

Does homeowners insurance cover earthquake damage?

No. Standard homeowners and renters policies exclude earthquake damage, though they generally cover fire following a quake (Triple-I).

How much is the deductible on earthquake insurance?

Usually a percentage of the coverage limit. Triple-I cites 5% to 15%, the NAIC cites 10% to 20%, and the CEA offers 5% to 25%.

Is earthquake insurance worth it?

It depends on your local risk, your savings, and the deductible in dollars. It is catastrophe coverage meant for large losses you could not absorb, not for minor cracks.

What does earthquake insurance cover?

Typically direct shaking damage to the home, and optionally belongings and loss of use. CEA policies also include building code upgrade and emergency repair coverage (CEA).

Are aftershocks covered under the same claim?

Often, if they happen within a 72-hour window. Aftershocks after that may be a new claim with a new deductible, per the NAIC.

Do I need earthquake insurance outside California?

Possibly. The USGS found nearly 75% of the U.S. could experience damaging shaking, and the NAIC highlights the New Madrid fault in the Midwest.

Where can I buy earthquake insurance?

From most private insurers as an endorsement or separate policy and, in California, through the CEA via your home insurance company or agent.

Sources

Educational disclaimer: This article is general U.S. consumer-finance education, not insurance, legal, tax, or financial advice, and it is not a recommendation to buy, cancel, switch, or decline any insurance policy, endorsement, warranty, or service contract. FitCreeper Finance is not an insurance agent, broker, adjuster, or insurer, does not sell insurance or home warranties, and does not receive pay from companies mentioned here. Policy wording, state insurance laws, and insurer practices vary by state and change over time; your own policy and declarations page control. Confirm details with the official sources linked above, your insurer or licensed agent, and your state insurance department. Questions or corrections: fryntavo@gmail.com.