East Peoria, IL: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, East Peoria is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, East Peoria ranks above 41% of the 4,875 cities in this dataset for seismic hazard - the 41th percentile.

East Peoria by the numbers

The raw figures: peak ground acceleration 0.064g, short-period spectral response 0.135g, 1-second spectral response 0.077g. Among 330 Illinois cities in this dataset, East Peoria ranks 151 for seismic hazard, the 54th percentile within the state. About 22,024 people live in East Peoria, Illinois.

Retrofit economics for East Peoria

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.

Insuring against this, not just retrofitting

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 East Peoria address.

More on how this number was built

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