Parker's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Parker in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Rank it against the rest of the country and Parker sits at the 58th percentile for seismic hazard among 4,875 US cities.

Where Parker sits in Colorado

The raw figures: peak ground acceleration 0.111g, short-period spectral response 0.202g, 1-second spectral response 0.056g. Among 79 Colorado cities in this dataset, Parker ranks 43 for seismic hazard, the 46th percentile within the state. About 65,473 people live in Parker, Colorado.

Retrofit economics for Parker

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.

Earthquake insurance for a Parker 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 Parker address.

More on how this number was built

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