Hartford City's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Hartford City is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Hartford City in the 42th percentile nationally for seismic hazard - higher than 42% of the 4,875 US cities USGS was checked against here.

How Hartford City compares

The raw figures: peak ground acceleration 0.067g, short-period spectral response 0.134g, 1-second spectral response 0.071g. Among 126 Indiana cities in this dataset, Hartford City ranks 80 for seismic hazard, the 37th percentile within the state. About 5,927 people live in Hartford City, Indiana.

What a retrofit costs in Hartford City

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Indiana. 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 Hartford City address.

More on how this number was built

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