Clemmons, NC: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Clemmons in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Clemmons ranks above 51% of the 4,875 cities in this dataset for seismic hazard - the 51th percentile.

Where Clemmons sits in North Carolina

The raw figures: peak ground acceleration 0.083g, short-period spectral response 0.166g, 1-second spectral response 0.071g. Among 147 North Carolina cities in this dataset, Clemmons ranks 68 for seismic hazard, the 54th percentile within the state. About 22,471 people live in Clemmons, 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 Clemmons 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 Clemmons address.

More on how this number was built

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