Yazoo City, MS: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Yazoo City 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. Rank it against the rest of the country and Yazoo City sits at the 68th percentile for seismic hazard among 4,875 US cities.

How Yazoo City compares

USGS's underlying values for Yazoo City: 0.086g peak ground acceleration, 0.178g at short period, 0.098g at 1 second. Within Mississippi alone, Yazoo City ranks 27 of 61 cities by seismic hazard - the 57th percentile in-state. Yazoo City has a population of about 9,913.

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 Yazoo City 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 Yazoo City's figures come from

Yazoo City's Category C 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 C does and doesn't tell you about Yazoo City.