Does Staunton, VA need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Staunton is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Rank it against the rest of the country and Staunton sits at the 49th percentile for seismic hazard among 4,875 US cities.

How Staunton compares

The raw figures: peak ground acceleration 0.075g, short-period spectral response 0.144g, 1-second spectral response 0.054g. Among 63 Virginia cities in this dataset, Staunton ranks 35 for seismic hazard, the 45th percentile within the state. About 26,361 people live in Staunton, Virginia.

Retrofit economics for Staunton

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

More on how this number was built

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