Does Gulfport, MS need an earthquake retrofit?

Gulfport 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. Nationally, Gulfport ranks above 27% of the 4,875 cities in this dataset for seismic hazard - the 27th percentile.

How Gulfport compares

The raw figures: peak ground acceleration 0.046g, short-period spectral response 0.095g, 1-second spectral response 0.058g. Among 61 Mississippi cities in this dataset, Gulfport ranks 49 for seismic hazard, the 20th percentile within the state. About 74,621 people live in Gulfport, 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 Gulfport address.

More on how this number was built

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