Does Bartlesville, OK need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Bartlesville is 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 Bartlesville sits at the 31th percentile for seismic hazard among 4,875 US cities.

Bartlesville by the numbers

The raw figures: peak ground acceleration 0.051g, short-period spectral response 0.109g, 1-second spectral response 0.07g. Among 75 Oklahoma cities in this dataset, Bartlesville ranks 74 for seismic hazard, the 1th percentile within the state. About 38,355 people live in Bartlesville, Oklahoma.

What a retrofit costs in Bartlesville

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

Earthquake insurance for a Bartlesville 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 Bartlesville address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Bartlesville'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.