Does Economy, PA need an earthquake retrofit?

Economy 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 Economy sits at the 25th percentile for seismic hazard among 4,875 US cities.

Economy by the numbers

The raw figures: peak ground acceleration 0.044g, short-period spectral response 0.092g, 1-second spectral response 0.045g. Among 193 Pennsylvania cities in this dataset, Economy ranks 121 for seismic hazard, the 38th percentile within the state. About 8,990 people live in Economy, 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.

What this means for insurance

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 Economy address.

More on how this number was built

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