Earthquake damage is excluded from nearly every standard US homeowners, renters, and condo policy, so protection must be bought separately as an endorsement or a standalone policy. Because it is catastrophe coverage with unusually high percentage-based deductibles, deciding whether to carry it depends heavily on where you live, how your home is built, and your financial ability to absorb a large loss.
Standard homeowners coverage
Excludes earthquake / earth-movement damage
How it is purchased
Separate endorsement or standalone policy (optional)
Typical deductible
10-25% of dwelling coverage (not a flat dollar amount)
Largest California provider
California Earthquake Authority (CEA)
Almost every standard US homeowners, renters, and condo-unit-owner policy contains an "earth movement" exclusion that removes coverage for damage caused by earthquakes. This is not a gap that varies by carrier preference; it is a near-universal feature of the base policy form, which is why the same exclusion appears whether you have an HO-3, HO-5, renters, or condo policy.
Earthquakes are excluded because they are a correlated catastrophe risk. A single large event can damage a very high number of structures at the same moment across a wide area, which undermines the risk-pooling math that ordinary insurance relies on. To offer the coverage sustainably, insurers separate it out, price it on its own, and back it with dedicated capital or reinsurance. That is why earthquake protection is sold as an add-on or as a distinct policy rather than being bundled into the standard premium.
The earth-movement exclusion is usually broad. Homeowners should read the exact wording of their own policy, or ask their carrier or state insurance department, to understand precisely what is and is not removed.
There are two common ways to obtain earthquake protection. The first is an endorsement (rider) added onto your existing homeowners policy, which folds the coverage in alongside your current dwelling and contents limits. The second is a standalone earthquake policy from a specialty insurer or a state-affiliated program, purchased separately from your homeowners policy but usually tied to the home it insures.
A typical earthquake policy or endorsement is built around the same core coverage parts as a homeowners policy: the dwelling structure, personal property (contents), and loss of use, which pays additional living expenses if the home is uninhabitable while repairs are made. Coverage limits are generally linked to the dwelling limit on your underlying homeowners policy. Some policies also offer or include building-code-upgrade coverage, which helps pay the extra cost of rebuilding to current codes.
Coverage is not unlimited, and several things are commonly excluded or sub-limited. Confirm the specifics in writing with the carrier before you rely on any assumption about what is covered.
The single most important feature of earthquake insurance is the deductible, which is expressed as a percentage of your dwelling coverage rather than a flat dollar amount. Earthquake deductibles typically run from about 10% to 25% of the dwelling limit. Because the percentage is applied to the insured value of the home and not to the size of the claim, the out-of-pocket amount can be substantial.
As an illustrative example only, on a home insured for $400,000 with a 15% deductible, the homeowner would absorb roughly $60,000 of damage before the policy pays anything. This structure means earthquake insurance functions as catastrophe protection against a major, home-threatening event, not as coverage for cracked plaster or a few broken items. Some policies apply separate deductibles to the dwelling and to contents.
Lower deductible percentages are available from some providers but generally raise the premium, while higher deductibles lower the premium. The right balance depends on how much loss you could realistically self-fund versus how much premium you are willing to pay for a lower threshold.
California is a special case because of its seismic exposure and its history. After the 1994 Northridge earthquake caused heavy insured losses, many insurers pulled back from writing homeowners policies in the state. In response, California established the California Earthquake Authority, a publicly managed, not-for-profit, privately funded organization that began selling policies in 1996.
The CEA does not sell directly to the public on its own; instead, its policies are offered through participating (member) residential insurers, so a homeowner typically buys a CEA earthquake policy alongside a homeowners policy from one of those companies. It is the largest provider of residential earthquake insurance in California and offers a range of deductible and coverage options so buyers can adjust price against protection.
The CEA also runs incentive and mitigation efforts, including retrofit programs such as Earthquake Brace + Bolt, which can help qualifying older homes reduce quake vulnerability and may support a premium reduction. The CEA operates only in California; homeowners in other states obtain earthquake coverage through private insurers or specialty markets.
Earthquake risk in the United States is concentrated but not confined to the West Coast. California, Washington, and Oregon carry substantial exposure from major fault systems and the offshore Cascadia Subduction Zone, and Alaska experiences the highest overall seismicity of any state. These are the regions most people associate with earthquakes, and where coverage is most commonly discussed.
Significant risk also exists well away from the West Coast. The New Madrid Seismic Zone in the central US spans parts of Missouri, Tennessee, and Arkansas (and reaches into Kentucky and Illinois) and was the source of very large historical earthquakes in 1811-1812. Other areas with meaningful hazard include Utah along the Wasatch Fault, Nevada, and the Charleston, South Carolina area, site of a major quake in 1886.
Hazard is not uniform even within a high-risk state; it depends on proximity to faults and on local soil conditions. Homeowners can check the US Geological Survey (USGS) national seismic hazard maps for their specific location and confirm coverage availability and pricing with their state department of insurance or a licensed carrier.
There is no universal answer; the decision comes down to your exposure, your home, and your finances. The main factors are how close you are to active faults and known hazard zones, how your home is built, the replacement cost of the structure, and how large a loss you could absorb from savings before insurance would pay given the high deductible.
Construction matters a great deal. Older unreinforced masonry, homes not bolted to their foundations, and "soft-story" buildings with weak lower levels tend to perform worse in a quake, which raises both the physical risk and the value of coverage. Retrofitting, such as bolting the home to its foundation or bracing a cripple wall, can reduce damage potential and in some programs support a lower premium. A newer, well-built home on stable soil far from major faults presents a different risk profile than an older home near an active fault.
Because the deductible is high, earthquake insurance is best understood as protection against a rare but financially devastating event rather than routine damage coverage. Homeowners weighing it should compare the premium and deductible against the cost to rebuild, consider mortgage and savings obligations, and verify options and pricing with a licensed carrier or their state department of insurance before deciding.
No. Nearly all standard US homeowners, renters, and condo policies contain an "earth movement" exclusion that removes coverage for earthquake damage. To be protected, you must add an earthquake endorsement to your policy or buy a separate standalone earthquake policy. This is true across carriers because the exclusion is part of the standard policy form, not an optional carrier decision. Read your own policy wording or ask your insurer to confirm exactly what is excluded.
Premiums vary widely and depend on factors such as your state and proximity to faults, local soil conditions, the age and construction type of your home, its replacement cost, and the deductible you choose. Because pricing is so location- and property-specific, there is no meaningful single national average to quote, and choosing a higher deductible generally lowers the premium while a lower deductible raises it. For an accurate figure, request a quote from a licensed carrier or, in California, through a CEA participating insurer. Your state department of insurance can also point you to available markets.
Earthquake deductibles are set as a percentage of your dwelling coverage rather than as a flat dollar amount, and they typically range from about 10% to 25% of the dwelling limit. The percentage applies to the home's insured value, not to the size of the claim, so the out-of-pocket amount can be large. This high deductible reflects the coverage's purpose: protecting against a rare, major, home-threatening event rather than minor damage. Some policies also apply separate deductibles to the dwelling and to personal property.
These are handled separately. Fire that follows an earthquake is generally covered under the fire coverage in your standard homeowners policy rather than the earthquake policy, though you should confirm this with your insurer. Water damage from a tsunami or from flooding is typically treated as flood, which is not covered by an earthquake policy and instead requires separate flood insurance. The land itself and vehicles are also generally not covered by earthquake insurance; vehicle damage would fall under an auto policy's comprehensive coverage.
Possibly. While California, Washington, Oregon, and Alaska carry the largest exposure, meaningful earthquake risk exists elsewhere, including the New Madrid Seismic Zone across Missouri, Tennessee, and Arkansas, the Wasatch Fault in Utah, parts of Nevada, and the Charleston, South Carolina area. Risk depends on your distance from active faults and on local soil conditions, so it varies even within a state. You can check the US Geological Survey (USGS) seismic hazard maps for your specific location and ask a licensed carrier or your state department of insurance about coverage options.
The CEA is a publicly managed, not-for-profit, privately funded organization created by California after the 1994 Northridge earthquake, which began issuing policies in 1996. It is the largest provider of residential earthquake insurance in California, but it sells through participating member insurers rather than directly to consumers, so you typically buy a CEA policy alongside a homeowners policy. It offers a range of deductible and coverage options and supports retrofit programs such as Earthquake Brace + Bolt. The CEA operates only in California; homeowners in other states use private or specialty insurers.
Michael Torres
Editorial Lead, Catastrophe & Commercial Property
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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