Craig's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Craig in Seismic Design Category C: Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. Rank it against the rest of the country and Craig sits at the 77th percentile for seismic hazard among 4,875 US cities.

Where Craig sits in Colorado

USGS's underlying values for Craig: 0.196g peak ground acceleration, 0.329g at short period, 0.077g at 1 second. Within Colorado alone, Craig ranks 9 of 79 cities by seismic hazard - the 90th percentile in-state. Craig has a population of about 8,903.

Retrofit economics for Craig

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 Colorado 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 Colorado.

Insuring against this, not just retrofitting

A Craig 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 Craig's figures come from

Craig's Category C 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 C does and doesn't tell you about Craig.