Pike Road's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Pike Road is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Pike Road in the 37th percentile nationally for seismic hazard - higher than 37% of the 4,875 US cities USGS was checked against here.

How Pike Road compares

The raw figures: peak ground acceleration 0.06g, short-period spectral response 0.125g, 1-second spectral response 0.074g. Among 107 Alabama cities in this dataset, Pike Road ranks 77 for seismic hazard, the 28th percentile within the state. About 11,500 people live in Pike Road, Alabama.

Retrofit economics for Pike Road

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

More on how this number was built

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