Does Anna, TX need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Anna 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 Anna sits at the 42th percentile for seismic hazard among 4,875 US cities.

Anna by the numbers

USGS's underlying values for Anna: 0.066g peak ground acceleration, 0.132g at short period, 0.062g at 1 second. Within Texas alone, Anna ranks 27 of 384 cities by seismic hazard - the 93th percentile in-state. Anna has a population of about 31,986.

Retrofit economics for Anna

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.

Earthquake insurance for a Anna home

A Anna 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 Anna's figures come from

Anna'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 Anna.