Pampa's Seismic Design Category, explained

Pampa 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. That puts Pampa in the 58th percentile nationally for seismic hazard - higher than 58% of the 4,875 US cities USGS was checked against here.

Where Pampa sits in Texas

The raw figures: peak ground acceleration 0.107g, short-period spectral response 0.192g, 1-second spectral response 0.05g. Among 384 Texas cities in this dataset, Pampa ranks 8 for seismic hazard, the 98th percentile within the state. About 16,487 people live in Pampa, Texas.

Retrofit economics for Pampa

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Texas. 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 Pampa address.

More on how this number was built

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