Magnolia, AR: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Magnolia is Category B. 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 Magnolia sits at the 47th percentile for seismic hazard among 4,875 US cities.

How Magnolia compares

The raw figures: peak ground acceleration 0.072g, short-period spectral response 0.148g, 1-second spectral response 0.082g. Among 68 Arkansas cities in this dataset, Magnolia ranks 65 for seismic hazard, the 4th percentile within the state. About 10,759 people live in Magnolia, Arkansas.

Bracing and bolting: the actual cost

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Arkansas. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Magnolia 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 Magnolia address.

More on how this number was built

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