Pass Christian, MS: what USGS's seismic model says
Pass Christian 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 Pass Christian sits at the 25th percentile for seismic hazard among 4,875 US cities.
How Pass Christian compares
The raw figures: peak ground acceleration 0.045g, short-period spectral response 0.093g, 1-second spectral response 0.057g. Among 61 Mississippi cities in this dataset, Pass Christian ranks 61 for seismic hazard, the 0th percentile within the state. About 6,429 people live in Pass Christian, Mississippi.
Retrofit economics for Pass Christian
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 Pass Christian address.
More on how this number was built
The methodology guide covers exactly how USGS's public design-maps API produced Pass Christian'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.