Does Fargo, ND need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Fargo in Seismic Design Category A: Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. That puts Fargo in the 10th percentile nationally for seismic hazard - higher than 10% of the 4,875 US cities USGS was checked against here.

How Fargo compares

The raw figures: peak ground acceleration 0.028g, short-period spectral response 0.059g, 1-second spectral response 0.019g. Among 14 North Dakota cities in this dataset, Fargo ranks 5 for seismic hazard, the 69th percentile within the state. About 136,285 people live in Fargo, North Dakota.

Retrofit economics for Fargo

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

Earthquake insurance for a Fargo 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 Fargo address.

More on how this number was built

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