Does Clairton, PA need an earthquake retrofit?

Clairton 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. Rank it against the rest of the country and Clairton sits at the 22th percentile for seismic hazard among 4,875 US cities.

Where Clairton sits in Pennsylvania

The raw figures: peak ground acceleration 0.042g, short-period spectral response 0.089g, 1-second spectral response 0.045g. Among 193 Pennsylvania cities in this dataset, Clairton ranks 161 for seismic hazard, the 17th percentile within the state. About 5,945 people live in Clairton, Pennsylvania.

Retrofit economics for Clairton

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 Clairton 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 Clairton address.

More on how this number was built

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