Fairfield, OH: what USGS's seismic model says

Fairfield 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. Rank it against the rest of the country and Fairfield sits at the 46th percentile for seismic hazard among 4,875 US cities.

Fairfield by the numbers

The raw figures: peak ground acceleration 0.071g, short-period spectral response 0.143g, 1-second spectral response 0.075g. Among 254 Ohio cities in this dataset, Fairfield ranks 95 for seismic hazard, the 63th percentile within the state. About 45,094 people live in Fairfield, Ohio.

What a retrofit costs in Fairfield

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

More on how this number was built

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