Hugo's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Hugo in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Hugo in the 49th percentile nationally for seismic hazard - higher than 49% of the 4,875 US cities USGS was checked against here.

Where Hugo sits in Oklahoma

The raw figures: peak ground acceleration 0.077g, short-period spectral response 0.152g, 1-second spectral response 0.071g. Among 75 Oklahoma cities in this dataset, Hugo ranks 46 for seismic hazard, the 39th percentile within the state. About 5,142 people live in Hugo, Oklahoma.

Retrofit economics for Hugo

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 Hugo 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 Hugo address.

More on how this number was built

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