Avon's Seismic Design Category, explained

Avon 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 Avon in the 44th percentile nationally for seismic hazard - higher than 44% of the 4,875 US cities USGS was checked against here.

How Avon compares

The raw figures: peak ground acceleration 0.069g, short-period spectral response 0.131g, 1-second spectral response 0.05g. Among 254 Ohio cities in this dataset, Avon ranks 139 for seismic hazard, the 45th percentile within the state. About 25,573 people live in Avon, Ohio.

Bracing and bolting: the actual cost

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 Avon address.

More on how this number was built

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