Russellville, AL: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Russellville in Seismic Design Category D: High seismic hazard - this is the category most of coastal California, the Pacific Northwest, and other active fault regions fall into. Code mandates significant seismic detailing and restricts irregular structural configurations. This is the category the Brace + Bolt scope (cripple-wall bracing, foundation bolting) is built for. That puts Russellville in the 80th percentile nationally for seismic hazard - higher than 80% of the 4,875 US cities USGS was checked against here.

Where Russellville sits in Alabama

The raw figures: peak ground acceleration 0.152g, short-period spectral response 0.297g, 1-second spectral response 0.135g. Among 107 Alabama cities in this dataset, Russellville ranks 5 for seismic hazard, the 96th percentile within the state. About 10,736 people live in Russellville, Alabama.

Retrofit economics for Russellville

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.

Earthquake insurance for a Russellville 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 Russellville address.

More on how this number was built

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