Picture the morning after a real shake. Not a rattle. A rupture — the kind that cracks stucco, pops sliding doors off their tracks, and sends your HOA board into an emergency meeting by noon. You check your own unit. Some damage inside, but you are insured, right? Then a letter arrives from the association a few weeks later. It is a special assessment. Your share of the master policy earthquake deductible. And it is five figures.
This is the part of condo earthquake coverage almost nobody explains clearly. For California owners, the gap is not one hole. It is two.
The master policy carries earthquake, but the deductible is enormous
Start with the building itself. Your HOA master policy covers the structure, the shared walls, the roof, the common areas. If that master policy includes earthquake at all — and plenty do not — it almost never works like a normal deductible.
Earthquake deductibles on master policies get written as a percentage of the insured value of the whole building. Not a flat dollar amount. We are talking 5%, 10%, sometimes 15% of a multimillion dollar structure. Do the math on a $12 million building at a 10% deductible. That is $1.2 million the association has to absorb before the master policy pays a dime.
Where does that money come from? You. And every other owner. The board levies a special assessment and splits the deductible across the units. You get billed for your slice whether or not your specific unit took any damage. A ground floor owner and a top floor owner both pay, even if only one of them lost anything.
That is the first layer of the gap. And here is the uncomfortable part. Many boards have quietly raised those deductibles in recent years to keep master policy premiums down. Lower premium for the association, bigger potential bill for the owner. Deductibles north of $10,000 per building are not unusual anymore, and in some complexes they run far higher.
Your HO-6 excludes earthquake by default
Now the inside of your unit. Your walls-in coverage, your floors, your cabinets, your belongings. That is the HO-6 policy job.
Except a standard HO-6 excludes earthquake. Flatly. Read the exclusions page and it is right there. So if the shaking cracks your interior walls, buckles your flooring, or shatters everything in your kitchen, a plain HO-6 will not touch it. People assume they have condo insurance, so they are fine. Not for a quake. Not without adding coverage on purpose.
In California, the fix is usually a separate earthquake policy layered onto your HO-6. The California Earthquake Authority (CEA) sells a condo-unit version through participating carriers, and private DIC — difference in conditions — earthquake policies do the same job. Both cover the unit interior that the master policy leaves to you, plus your personal property, plus loss of use if the unit becomes uninhabitable. CEA condo deductibles run as a percentage of each coverage, with options like 5%, 10%, and 15%.
Loss assessment is a separate limit, and it is not the same coverage
Here is where owners get tripped up. Covering your unit interior and covering your share of the HOA deductible are two different things, with two different limits.
A CEA condo policy breaks out earthquake loss assessment as its own coverage, with its own limit — up to $100,000 for your portion of a covered special assessment. That is the money aimed squarely at that five-figure letter from the board. It pays your share of assessments for earthquake damage to the building and common areas, including the master policy deductible itself.
But watch the default. On many standard condo policies, the built-in loss assessment limit is tiny — often just $1,000 — and on a regular HO-6 it typically will not respond to an earthquake assessment at all, because earthquake is excluded. A thousand dollars against a share of a million dollar deductible? That is not coverage. That is a rounding error. This is the sublimit that quietly sinks people, and it is the one worth checking line by line.
What to actually check before the next one hits
Pull two documents. Your HOA master policy declarations, and your own HO-6 declarations. Then ask three plain questions.
Does the master policy even include earthquake? If yes, what is the deductible percentage, and roughly what would your unit share of that deductible be? A quick call to your property manager usually gets you the number. Second, does your unit have a real earthquake policy, CEA or private DIC, and not just a standard HO-6? Third, what is your earthquake loss assessment limit specifically, and is it anywhere near your likely share of the master deductible?
Those three answers tell you whether you are actually covered or just assuming you are. Most people find at least one soft spot. A missing earthquake policy on the unit. A loss assessment limit set at the default. Or a master policy that dropped earthquake entirely and never told the owners plainly.
None of this is about fear. It is about matching the coverage to how condo earthquake risk actually gets split — building on the association, interior and assessment share on you. Two layers, two policies, two limits that have to line up. The shaking does not wait for you to read your declarations page. So read it now, while the ground is still holding still. Ask us to review your HO-6 and earthquake loss assessment limits and we will tell you straight where the gaps are.