Does Batesburg-Leesville, SC need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Batesburg-Leesville is Category C. Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. Rank it against the rest of the country and Batesburg-Leesville sits at the 76th percentile for seismic hazard among 4,875 US cities.

Where Batesburg-Leesville sits in South Carolina

The raw figures: peak ground acceleration 0.18g, short-period spectral response 0.321g, 1-second spectral response 0.106g. Among 66 South Carolina cities in this dataset, Batesburg-Leesville ranks 35 for seismic hazard, the 48th percentile within the state. About 5,321 people live in Batesburg-Leesville, South Carolina.

What a retrofit costs in Batesburg-Leesville

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for South Carolina. 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 Batesburg-Leesville address.

More on how this number was built

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