Does Gautier, MS need an earthquake retrofit?

Gautier carries Seismic Design Category B under USGS's ASCE 7-16 model. 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 Gautier sits at the 27th percentile for seismic hazard among 4,875 US cities.

Where Gautier sits in Mississippi

The raw figures: peak ground acceleration 0.046g, short-period spectral response 0.094g, 1-second spectral response 0.058g. Among 61 Mississippi cities in this dataset, Gautier ranks 51 for seismic hazard, the 17th percentile within the state. About 19,055 people live in Gautier, Mississippi.

Bracing and bolting: the actual cost

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Mississippi. 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 Gautier address.

More on how this number was built

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