Does Gallup, NM need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Gallup is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Gallup in the 49th percentile nationally for seismic hazard - higher than 49% of the 4,875 US cities USGS was checked against here.

Gallup by the numbers

USGS's underlying values for Gallup: 0.076g peak ground acceleration, 0.153g at short period, 0.052g at 1 second. Within New Mexico alone, Gallup ranks 27 of 35 cities by seismic hazard - the 24th percentile in-state. Gallup has a population of about 20,339.

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 New Mexico 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 New Mexico.

Insuring against this, not just retrofitting

A Gallup 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 Gallup's figures come from

Gallup'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 Gallup.