Does Jennings, LA need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Jennings 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 Jennings sits at the 21th percentile for seismic hazard among 4,875 US cities.

Where Jennings sits in Louisiana

The raw figures: peak ground acceleration 0.04g, short-period spectral response 0.082g, 1-second spectral response 0.051g. Among 59 Louisiana cities in this dataset, Jennings ranks 58 for seismic hazard, the 2th percentile within the state. About 9,280 people live in Jennings, Louisiana.

Retrofit economics for Jennings

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

More on how this number was built

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