Does Milton, WI need an earthquake retrofit?

Milton carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Milton ranks above 22% of the 4,875 cities in this dataset for seismic hazard - the 22th percentile.

How Milton compares

The raw figures: peak ground acceleration 0.042g, short-period spectral response 0.086g, 1-second spectral response 0.052g. Among 157 Wisconsin cities in this dataset, Milton ranks 18 for seismic hazard, the 89th percentile within the state. About 5,778 people live in Milton, Wisconsin.

Bracing and bolting: the actual cost

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.

What this means for insurance

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 Milton address.

More on how this number was built

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