Duryea's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Duryea in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Duryea ranks above 38% of the 4,875 cities in this dataset for seismic hazard - the 38th percentile.

Duryea by the numbers

The raw figures: peak ground acceleration 0.062g, short-period spectral response 0.124g, 1-second spectral response 0.044g. Among 193 Pennsylvania cities in this dataset, Duryea ranks 97 for seismic hazard, the 50th percentile within the state. About 5,142 people live in Duryea, Pennsylvania.

Bracing and bolting: the actual cost

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

Earthquake insurance for a Duryea 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 Duryea address.

More on how this number was built

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