McMinnville, TN: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places McMinnville 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. Nationally, McMinnville ranks above 73% of the 4,875 cities in this dataset for seismic hazard - the 73th percentile.

McMinnville by the numbers

USGS's underlying values for McMinnville: 0.133g peak ground acceleration, 0.257g at short period, 0.112g at 1 second. Within Tennessee alone, McMinnville ranks 93 of 104 cities by seismic hazard - the 11th percentile in-state. McMinnville has a population of about 14,032.

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 Tennessee 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 Tennessee.

Earthquake insurance for a McMinnville home

A McMinnville 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 McMinnville's figures come from

McMinnville'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 McMinnville.