Does Forest, MS need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Forest in Seismic Design 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 Forest sits at the 67th percentile for seismic hazard among 4,875 US cities.

How Forest compares

The raw figures: peak ground acceleration 0.071g, short-period spectral response 0.146g, 1-second spectral response 0.084g. Among 61 Mississippi cities in this dataset, Forest ranks 32 for seismic hazard, the 48th percentile within the state. About 5,364 people live in Forest, 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.

Earthquake insurance for a Forest home

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 Forest address.

More on how this number was built

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