Does Fircrest, WA need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Fircrest in Seismic Design Category D: High seismic hazard - this is the category most of coastal California, the Pacific Northwest, and other active fault regions fall into. Code mandates significant seismic detailing and restricts irregular structural configurations. This is the category the Brace + Bolt scope (cripple-wall bracing, foundation bolting) is built for. That puts Fircrest in the 90th percentile nationally for seismic hazard - higher than 90% of the 4,875 US cities USGS was checked against here.

Where Fircrest sits in Washington

USGS's underlying values for Fircrest: 0.5g peak ground acceleration, 1.373g at short period, 0.476g at 1 second. Within Washington alone, Fircrest ranks 67 of 125 cities by seismic hazard - the 47th percentile in-state. Fircrest has a population of about 6,988.

Bracing and bolting: the actual cost

A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by Washington specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in Washington.

What this means for insurance

A Fircrest homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.

Where Fircrest's figures come from

Fircrest's Category D and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category D does and doesn't tell you about Fircrest.