Does Lynchburg, VA need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Lynchburg in Seismic Design 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 Lynchburg sits at the 51th percentile for seismic hazard among 4,875 US cities.

Where Lynchburg sits in Virginia

The raw figures: peak ground acceleration 0.081g, short-period spectral response 0.154g, 1-second spectral response 0.057g. Among 63 Virginia cities in this dataset, Lynchburg ranks 29 for seismic hazard, the 55th percentile within the state. About 80,301 people live in Lynchburg, Virginia.

Retrofit economics for Lynchburg

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.

Insuring against this, not just retrofitting

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 Lynchburg address.

More on how this number was built

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