Sand Springs, OK: what USGS's seismic model says

Sand Springs carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Sand Springs ranks above 41% of the 4,875 cities in this dataset for seismic hazard - the 41th percentile.

How Sand Springs compares

The raw figures: peak ground acceleration 0.064g, short-period spectral response 0.131g, 1-second spectral response 0.072g. Among 75 Oklahoma cities in this dataset, Sand Springs ranks 61 for seismic hazard, the 19th percentile within the state. About 20,330 people live in Sand Springs, Oklahoma.

What a retrofit costs in Sand Springs

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.

Insuring against this, not just retrofitting

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 Sand Springs address.

More on how this number was built

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