Enumclaw, WA: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Enumclaw 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. Nationally, Enumclaw ranks above 89% of the 4,875 cities in this dataset for seismic hazard - the 89th percentile.

Where Enumclaw sits in Washington

USGS's underlying values for Enumclaw: 0.484g peak ground acceleration, 1.142g at short period, 0.393g at 1 second. Within Washington alone, Enumclaw ranks 72 of 125 cities by seismic hazard - the 43th percentile in-state. Enumclaw has a population of about 13,173.

What a retrofit costs in Enumclaw

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.

Insuring against this, not just retrofitting

A Enumclaw 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 Enumclaw's figures come from

Enumclaw'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 Enumclaw.