Greenwood, MO: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Greenwood in Seismic Design Category B: 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 Greenwood sits at the 28th percentile for seismic hazard among 4,875 US cities.

How Greenwood compares

USGS's underlying values for Greenwood: 0.048g peak ground acceleration, 0.102g at short period, 0.069g at 1 second. Within Missouri alone, Greenwood ranks 111 of 135 cities by seismic hazard - the 18th percentile in-state. Greenwood has a population of about 6,235.

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 Missouri 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 Missouri.

What this means for insurance

A Greenwood 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 Greenwood's figures come from

Greenwood'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 Greenwood.