Union City's Seismic Design Category, explained

Union City carries Seismic Design Category C under USGS's ASCE 7-16 model. 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 Union City sits at the 68th percentile for seismic hazard among 4,875 US cities.

Where Union City sits in Georgia

The raw figures: peak ground acceleration 0.085g, short-period spectral response 0.172g, 1-second spectral response 0.084g. Among 148 Georgia cities in this dataset, Union City ranks 91 for seismic hazard, the 39th percentile within the state. About 28,195 people live in Union City, Georgia.

Retrofit economics for Union City

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Georgia. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Union City 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 Union City address.

More on how this number was built

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