Lamar, CO: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Lamar is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. That puts Lamar in the 14th percentile nationally for seismic hazard - higher than 14% of the 4,875 US cities USGS was checked against here.

Lamar by the numbers

The raw figures: peak ground acceleration 0.049g, short-period spectral response 0.106g, 1-second spectral response 0.041g. Among 79 Colorado cities in this dataset, Lamar ranks 77 for seismic hazard, the 3th percentile within the state. About 7,641 people live in Lamar, Colorado.

Bracing and bolting: the actual cost

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Colorado. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Lamar home

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Lamar address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Lamar's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.