QuakeRetrofitCheck

Dallas, GA: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Dallas 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. That puts Dallas in the 72th percentile nationally for seismic hazard - higher than 72% of the 4,875 US cities USGS was checked against here.

Where Dallas sits in Georgia

The raw figures: peak ground acceleration 0.125g, short-period spectral response 0.23g, 1-second spectral response 0.09g. Among 148 Georgia cities in this dataset, Dallas ranks 31 for seismic hazard, the 80th percentile within the state. About 15,062 people live in Dallas, Georgia.

Bracing and bolting: the actual cost

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.

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 Dallas address.

More on how this number was built

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