Does Burnsville, MN need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Burnsville is 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 Burnsville sits at the 6th percentile for seismic hazard among 4,875 US cities.

How Burnsville compares

The raw figures: peak ground acceleration 0.023g, short-period spectral response 0.048g, 1-second spectral response 0.031g. Among 155 Minnesota cities in this dataset, Burnsville ranks 44 for seismic hazard, the 72th percentile within the state. About 64,864 people live in Burnsville, Minnesota.

What a retrofit costs in Burnsville

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

Earthquake insurance for a Burnsville 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 Burnsville address.

More on how this number was built

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