Does Denton, TX need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Denton is 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 Denton sits at the 37th percentile for seismic hazard among 4,875 US cities.

How Denton compares

USGS's underlying values for Denton: 0.06g peak ground acceleration, 0.121g at short period, 0.057g at 1 second. Within Texas alone, Denton ranks 39 of 384 cities by seismic hazard - the 90th percentile in-state. Denton has a population of about 165,998.

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 Denton 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 Denton's figures come from

Denton'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 Denton.