Huntingdon's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Huntingdon is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Nationally, Huntingdon ranks above 14% of the 4,875 cities in this dataset for seismic hazard - the 14th percentile.

How Huntingdon compares

The raw figures: peak ground acceleration 0.046g, short-period spectral response 0.096g, 1-second spectral response 0.039g. Among 193 Pennsylvania cities in this dataset, Huntingdon ranks 182 for seismic hazard, the 6th percentile within the state. About 6,857 people live in Huntingdon, Pennsylvania.

Retrofit economics for Huntingdon

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 Huntingdon 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 Huntingdon address.

More on how this number was built

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