El Dorado's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, El Dorado is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, El Dorado ranks above 21% of the 4,875 cities in this dataset for seismic hazard - the 21th percentile.

El Dorado by the numbers

The raw figures: peak ground acceleration 0.041g, short-period spectral response 0.086g, 1-second spectral response 0.057g. Among 63 Kansas cities in this dataset, El Dorado ranks 50 for seismic hazard, the 21th percentile within the state. About 12,694 people live in El Dorado, Kansas.

What a retrofit costs in El Dorado

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

Earthquake insurance for a El Dorado 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 El Dorado address.

More on how this number was built

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