Does Groveport, OH need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Groveport in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Groveport in the 34th percentile nationally for seismic hazard - higher than 34% of the 4,875 US cities USGS was checked against here.

Where Groveport sits in Ohio

The raw figures: peak ground acceleration 0.057g, short-period spectral response 0.116g, 1-second spectral response 0.06g. Among 254 Ohio cities in this dataset, Groveport ranks 220 for seismic hazard, the 13th percentile within the state. About 5,867 people live in Groveport, 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 Groveport address.

More on how this number was built

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