Bowie's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Bowie is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Bowie in the 48th percentile nationally for seismic hazard - higher than 48% of the 4,875 US cities USGS was checked against here.

How Bowie compares

USGS's underlying values for Bowie: 0.074g peak ground acceleration, 0.143g at short period, 0.059g at 1 second. Within Texas alone, Bowie ranks 21 of 384 cities by seismic hazard - the 95th percentile in-state. Bowie has a population of about 6,054.

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 Bowie 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 Bowie's figures come from

Bowie'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 Bowie.