Does Groves, TX need an earthquake retrofit?

Groves carries Seismic Design Category B under USGS's ASCE 7-16 model. 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 Groves sits at the 20th percentile for seismic hazard among 4,875 US cities.

Where Groves sits in Texas

USGS's underlying values for Groves: 0.038g peak ground acceleration, 0.077g at short period, 0.045g at 1 second. Within Texas alone, Groves ranks 175 of 384 cities by seismic hazard - the 55th percentile in-state. Groves has a population of about 16,866.

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 Groves 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 Groves's figures come from

Groves'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 Groves.