Genoa, IL: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Genoa in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Genoa in the 40th percentile nationally for seismic hazard - higher than 40% of the 4,875 US cities USGS was checked against here.

How Genoa compares

The raw figures: peak ground acceleration 0.064g, short-period spectral response 0.125g, 1-second spectral response 0.062g. Among 330 Illinois cities in this dataset, Genoa ranks 168 for seismic hazard, the 49th percentile within the state. About 5,514 people live in Genoa, Illinois.

Bracing and bolting: the actual cost

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

Earthquake insurance for a Genoa 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 Genoa address.

More on how this number was built

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