La Porte's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places La Porte in Seismic Design Category B: 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 La Porte sits at the 31th percentile for seismic hazard among 4,875 US cities.

La Porte by the numbers

The raw figures: peak ground acceleration 0.051g, short-period spectral response 0.106g, 1-second spectral response 0.063g. Among 126 Indiana cities in this dataset, La Porte ranks 126 for seismic hazard, the 0th percentile within the state. About 22,444 people live in La Porte, Indiana.

Bracing and bolting: the actual cost

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.

Earthquake insurance for a La Porte 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 La Porte address.

More on how this number was built

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