Normandy Park, WA: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Normandy Park is 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, Normandy Park ranks above 94% of the 4,875 cities in this dataset for seismic hazard - the 94th percentile.

Where Normandy Park sits in Washington

The raw figures: peak ground acceleration 0.634g, short-period spectral response 1.494g, 1-second spectral response 0.508g. Among 125 Washington cities in this dataset, Normandy Park ranks 10 for seismic hazard, the 93th percentile within the state. About 6,661 people live in Normandy Park, Washington.

What a retrofit costs in Normandy Park

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.

Earthquake insurance for a Normandy Park home

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 Normandy Park address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Normandy Park'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.