Does Holdrege, NE need an earthquake retrofit?

Holdrege carries Seismic Design Category A under USGS's ASCE 7-16 model. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. That puts Holdrege in the 13th percentile nationally for seismic hazard - higher than 13% of the 4,875 US cities USGS was checked against here.

Holdrege by the numbers

The raw figures: peak ground acceleration 0.038g, short-period spectral response 0.08g, 1-second spectral response 0.039g. Among 32 Nebraska cities in this dataset, Holdrege ranks 30 for seismic hazard, the 6th percentile within the state. About 5,556 people live in Holdrege, Nebraska.

Bracing and bolting: the actual cost

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Nebraska. 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 Holdrege address.

More on how this number was built

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