No. Standard home insurance does not cover earthquakes. Every common homeowners policy, including the widely used HO-3 form, contains an earth movement exclusion that removes coverage for damage caused by seismic shaking, landslides, sinkholes, and volcanic eruptions. To be covered, you have to buy earthquake protection separately, either as an endorsement on your existing policy or as a standalone policy from a specialty carrier or state-managed pool. The gap matters more than most homeowners realize: nearly 75 percent of the United States could experience a damaging earthquake, and 37 states have recorded quakes above magnitude 5 in the last 200 years.
Why the Exclusion Exists
Insurers read the earth movement exclusion broadly. Any shifting, settling, or cracking of the ground is out, whether the trigger is natural or human-caused. When you file a claim after a quake, the adjuster traces the damage back to the first event in the chain. If ground shaking set everything in motion, the entire chain of structural damage falls under the exclusion, even if what you see is a cracked wall or a shifted foundation rather than a dramatic collapse. Secondary effects like earthquake-triggered landslides are also excluded.
The reason is risk concentration. A single major quake can destroy thousands of homes in one metro area at once, and that correlated loss is not something a standard insurance pool is built to absorb. So the carriers carved earthquakes out and sell the coverage separately.
The One Earthquake Loss Your Regular Policy Does Pay
There is a meaningful carve-out inside the exclusion. Most homeowners policies include an ensuing loss provision that restores coverage when an excluded event triggers a covered peril. The classic example: an earthquake ruptures a gas line, and the resulting fire or explosion burns the house. The fire damage is covered under the fire peril section of your standard policy, even if you have no earthquake insurance at all. Post-earthquake fires are the leading cause of total loss after major quakes, which makes this exception more consequential than it looks.
The complication is that adjusters will separate shake damage from fire damage and pay only for the fire portion. Cracks from the tremor stay excluded; what the flames consumed is covered.
How to Add Earthquake Coverage
You have two options. The first is an endorsement, sometimes called a rider, attached to your existing homeowners policy. It overrides the earth movement exclusion for an additional premium, and your current insurer handles the billing and any future claim. The second is a standalone earthquake policy from a specialty carrier or a state-managed insurance pool, with its own terms, limits, and deductibles independent of your homeowners coverage.
Neither happens automatically. You have to request it and go through underwriting. Expect questions about construction type, age, foundation style, and any seismic retrofitting. Wood-frame homes generally fare better than unreinforced masonry, and documented work like foundation bolting or cripple wall bracing can bring the premium down.
What Earthquake Policies Cover
Earthquake coverage generally applies to four categories of loss:
- Dwelling: repair or reconstruction of the main structure, including foundation, walls, roof, and attached features like a built-in garage, with limits usually set at replacement cost.
- Other structures: in some policies, detached buildings on the property such as a separate garage, shed, or carport.
- Personal property: belongings damaged during the quake, including furniture, electronics, and clothing destroyed by falling debris or structural collapse.
- Loss of use: additional living expenses if the home becomes uninhabitable, covering hotel stays, temporary rentals, and increased food costs during repairs.
Some policies offer optional building code upgrade coverage, which pays the extra cost when local codes require improvements beyond simple restoration. That matters most for older homes where rebuilding to current standards costs more than repair.
What It Still Won’t Cover
Even with earthquake insurance, significant gaps remain. Most policies exclude landscaping, swimming pools, fences, masonry walls, and retaining walls. Water damage from a seismic event is also excluded, whether the source is a burst dam, a tsunami, or a sewer backup triggered by ground movement. Water losses require a separate flood policy.
The split catches people off guard. An earthquake cracks your foundation and collapses interior walls: covered. The same earthquake sends a nearby river over its banks and into your first floor: not covered by the earthquake policy. In coastal or flood-prone areas, earthquake and flood insurance address two different risks, and you may need both.
How the Deductible Works
This is where earthquake insurance departs most sharply from the coverage you’re used to. Earthquake deductibles are not flat dollar amounts. They are percentages of your dwelling coverage limit, typically between 10 and 20 percent, with some policies offering options as low as 5 percent or as high as 25 percent.
The math is simple and sobering. If your home is insured for $400,000 and your deductible is 15 percent, you pay the first $60,000 of earthquake damage before the policy pays anything. A 10 percent deductible on the same home means $40,000 out of pocket. A lower deductible raises your annual premium; a higher one reduces the premium but increases your exposure. For homes valued above $1 million, or older homes without verified seismic retrofits, some insurers only offer the higher deductible tiers.
The deductible may apply separately to personal property coverage, though some insurers waive the personal property deductible when dwelling damage exceeds the dwelling deductible. Read the deductible structure carefully before you buy.
The Waiting Period and Post-Quake Moratoriums
Most earthquake policies include a mandatory waiting period, commonly 30 days, before coverage takes effect. You cannot buy a policy the day before an earthquake and expect it to pay. The waiting period exists to prevent people from purchasing coverage only when a threat is already imminent.
Carriers also impose binding moratoriums after significant seismic activity. When a quake strikes, insurers in the affected region temporarily stop writing new earthquake policies or endorsements, because aftershocks can cause more damage for days or weeks. These moratoriums have no fixed length and lift when the insurer decides the elevated risk has passed. If you wait until you feel the ground move, it is too late.
Why Federal Disaster Aid Is Not a Backup Plan
Some homeowners skip earthquake insurance assuming federal aid will cover them after a declared disaster. That assumption can be financially devastating. FEMA’s Individual and Households Program caps housing assistance at $43,600 per household per disaster, which will not come close to rebuilding most homes.
The larger federal option is an SBA disaster loan, which lets homeowners borrow up to $500,000 to repair or replace a primary residence at interest rates capped at 4 percent, with terms up to 30 years and an automatic 12-month deferral before payments begin. The key word is loan. Every dollar has to be repaid with interest. Insurance proceeds do not. Relying on federal assistance means trading an annual premium for decades of debt after a disaster.
Who Should Seriously Consider It
The map of earthquake risk is wider than most people think. California and Alaska get the headlines, but USGS data shows elevated shaking potential along the central and northeastern Atlantic corridor, including Washington D.C., Philadelphia, New York, and Boston. Hawaii faces seismic risk tied to volcanic activity. The New Madrid Seismic Zone affects several states in the central United States, and Oklahoma has seen a surge in activity linked to industrial operations.
The sharper question is what you can afford to lose. If a 15 percent deductible is more cash than you have in savings, earthquake insurance still helps, because it pays everything above that threshold, potentially hundreds of thousands of dollars. Homeowners with mortgages face a particularly harsh scenario without coverage: the house is destroyed, but the loan balance survives. You could be paying a mortgage on rubble while funding repairs or a replacement home at the same time. For anyone in a seismically active area whose home is the bulk of their net worth, this coverage is less about probability and more about surviving the financial aftermath if the unlikely happens.