Does Elizabeth City, NC need an earthquake retrofit?

Elizabeth City carries Seismic Design Category A under USGS's ASCE 7-16 model. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Rank it against the rest of the country and Elizabeth City sits at the 13th percentile for seismic hazard among 4,875 US cities.

How Elizabeth City compares

The raw figures: peak ground acceleration 0.036g, short-period spectral response 0.077g, 1-second spectral response 0.039g. Among 147 North Carolina cities in this dataset, Elizabeth City ranks 146 for seismic hazard, the 1th percentile within the state. About 19,028 people live in Elizabeth City, 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.

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 Elizabeth City address.

More on how this number was built

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