Westminster, CO: what USGS's seismic model says

Westminster carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Westminster ranks above 59% of the 4,875 cities in this dataset for seismic hazard - the 59th percentile.

How Westminster compares

The raw figures: peak ground acceleration 0.117g, short-period spectral response 0.213g, 1-second spectral response 0.059g. Among 79 Colorado cities in this dataset, Westminster ranks 36 for seismic hazard, the 55th percentile within the state. About 115,302 people live in Westminster, Colorado.

What a retrofit costs in Westminster

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Colorado. 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 Westminster address.

More on how this number was built

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