Does Peoria, AZ need an earthquake retrofit?

Peoria 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. That puts Peoria in the 56th percentile nationally for seismic hazard - higher than 56% of the 4,875 US cities USGS was checked against here.

Where Peoria sits in Arizona

The raw figures: peak ground acceleration 0.101g, short-period spectral response 0.228g, 1-second spectral response 0.075g. Among 57 Arizona cities in this dataset, Peoria ranks 34 for seismic hazard, the 41th percentile within the state. About 199,924 people live in Peoria, Arizona.

What a retrofit costs in Peoria

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Arizona. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Peoria 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 Peoria address.

More on how this number was built

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