Is Earthquake Insurance Worth It in Seattle?

The Seattle–Bellevue area sits in genuine earthquake country — the Cascadia subduction zone and the Seattle Fault are real, well-documented risks. And standard homeowners insurance excludes earthquake damage entirely. So the question is a real one: is separate earthquake coverage worth it?

What earthquake insurance covers

A separate earthquake policy or endorsement covers damage to your home and contents from a quake, plus loss of use. The defining feature is the deductible — typically 10–20% of the dwelling limit, not a flat dollar amount. On a $1.5M home, a 15% deductible is $225,000.

How to think about it

• The risk is low-probability, high-consequence. A major quake is unlikely in a given year but catastrophic if it happens — exactly the kind of risk insurance exists for.
• Your equity is on the line. For a high-value home, an uninsured quake could destroy the largest asset on your balance sheet.
• The deductible shapes the value. Because deductibles are high, earthquake insurance protects against catastrophic loss, not minor cracks. That's the right way to use it.

For high-value homeowners with significant equity in the property, it's often worth carrying precisely because the downside is so large.

Frequently asked questions

Does homeowners insurance cover earthquakes in Washington? No — earthquake damage is excluded from standard policies. You need a separate earthquake policy or endorsement.

Why is the earthquake deductible so high? Earthquake deductibles are a percentage of the dwelling limit (often 10–20%), reflecting catastrophic risk — so the coverage protects against major, not minor, damage.

Is earthquake insurance worth it in Seattle? For high-value homes where a quake could destroy significant equity, it's often worth carrying despite the high deductible, because the potential loss is so large.

More in this series: How Much Earthquake Insurance Costs in Washington · Flood Insurance in Washington: When You Need It

Related: Coverage Gap Calculator → · The Equity-Wealthy Household’s Insurance Guide →

Catastrophe coverage depends heavily on where and what you own, so High-Value Home Insurance in Newcastle, WA and How Much Homeowners Insurance Do You Need for a $2 Million Home? go hand in hand with this.

Trella Insurance is an independent brokerage in Bellevue, WA. Request a free review or try the coverage gap calculator.