Liberty Lake, WA: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Liberty Lake in Seismic Design Category C: Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. Rank it against the rest of the country and Liberty Lake sits at the 74th percentile for seismic hazard among 4,875 US cities.

How Liberty Lake compares

The raw figures: peak ground acceleration 0.143g, short-period spectral response 0.318g, 1-second spectral response 0.112g. Among 125 Washington cities in this dataset, Liberty Lake ranks 116 for seismic hazard, the 7th percentile within the state. About 13,353 people live in Liberty Lake, Washington.

What a retrofit costs in Liberty Lake

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Washington. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

What this means for insurance

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Liberty Lake address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Liberty Lake's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.