Does Silver City, NM need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Silver City 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 Silver City sits at the 58th percentile for seismic hazard among 4,875 US cities.

Silver City by the numbers

USGS's underlying values for Silver City: 0.109g peak ground acceleration, 0.246g at short period, 0.079g at 1 second. Within New Mexico alone, Silver City ranks 20 of 35 cities by seismic hazard - the 44th percentile in-state. Silver City has a population of about 9,399.

Retrofit economics for Silver City

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.

Earthquake insurance for a Silver City home

A Silver City 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 Silver City's figures come from

Silver City'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 Silver City.