Angola's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Angola in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Angola ranks above 44% of the 4,875 cities in this dataset for seismic hazard - the 44th percentile.

How Angola compares

The raw figures: peak ground acceleration 0.069g, short-period spectral response 0.133g, 1-second spectral response 0.058g. Among 126 Indiana cities in this dataset, Angola ranks 74 for seismic hazard, the 42th percentile within the state. About 9,432 people live in Angola, Indiana.

What a retrofit costs in Angola

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

What this means for insurance

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 Angola address.

More on how this number was built

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