Does Sawmills, NC need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Sawmills in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Sawmills in the 59th percentile nationally for seismic hazard - higher than 59% of the 4,875 US cities USGS was checked against here.

Where Sawmills sits in North Carolina

The raw figures: peak ground acceleration 0.117g, short-period spectral response 0.218g, 1-second spectral response 0.081g. Among 147 North Carolina cities in this dataset, Sawmills ranks 34 for seismic hazard, the 77th percentile within the state. About 5,059 people live in Sawmills, North Carolina.

Bracing and bolting: the actual cost

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

Earthquake insurance for a Sawmills 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 Sawmills address.

More on how this number was built

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