Granbury, TX: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Granbury 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 Granbury sits at the 19th percentile for seismic hazard among 4,875 US cities.

Where Granbury sits in Texas

USGS's underlying values for Granbury: 0.036g peak ground acceleration, 0.078g at short period, 0.046g at 1 second. Within Texas alone, Granbury ranks 186 of 384 cities by seismic hazard - the 52th percentile in-state. Granbury has a population of about 12,934.

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 Texas 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 Texas.

Insuring against this, not just retrofitting

A Granbury 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 Granbury's figures come from

Granbury'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 Granbury.