Does Louisville, OH need an earthquake retrofit?

Louisville 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 Louisville sits at the 32th percentile for seismic hazard among 4,875 US cities.

Where Louisville sits in Ohio

The raw figures: peak ground acceleration 0.054g, short-period spectral response 0.108g, 1-second spectral response 0.048g. Among 254 Ohio cities in this dataset, Louisville ranks 239 for seismic hazard, the 6th percentile within the state. About 9,793 people live in Louisville, Ohio.

What a retrofit costs in Louisville

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.

Earthquake insurance for a Louisville 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 Louisville address.

More on how this number was built

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