Marinette's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Marinette in Seismic Design Category A: Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Rank it against the rest of the country and Marinette sits at the 3th percentile for seismic hazard among 4,875 US cities.

Where Marinette sits in Wisconsin

The raw figures: peak ground acceleration 0.022g, short-period spectral response 0.047g, 1-second spectral response 0.032g. Among 157 Wisconsin cities in this dataset, Marinette ranks 146 for seismic hazard, the 7th percentile within the state. About 11,139 people live in Marinette, Wisconsin.

Retrofit economics for Marinette

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

Earthquake insurance for a Marinette 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 Marinette address.

More on how this number was built

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