Pascagoula, MS: what USGS's seismic model says
USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Pascagoula in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Pascagoula in the 26th percentile nationally for seismic hazard - higher than 26% of the 4,875 US cities USGS was checked against here.
Pascagoula by the numbers
USGS's underlying values for Pascagoula: 0.045g peak ground acceleration, 0.092g at short period, 0.057g at 1 second. Within Mississippi alone, Pascagoula ranks 54 of 61 cities by seismic hazard - the 12th percentile in-state. Pascagoula has a population of about 21,476.
Bracing and bolting: the actual cost
A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by Mississippi specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in Mississippi.
Insuring against this, not just retrofitting
A Pascagoula homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.
Where Pascagoula's figures come from
Pascagoula's Category B and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category B does and doesn't tell you about Pascagoula.