Excelsior Springs, MO: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Excelsior Springs in Seismic Design 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 Excelsior Springs sits at the 26th percentile for seismic hazard among 4,875 US cities.

Excelsior Springs by the numbers

The raw figures: peak ground acceleration 0.045g, short-period spectral response 0.095g, 1-second spectral response 0.069g. Among 135 Missouri cities in this dataset, Excelsior Springs ranks 124 for seismic hazard, the 8th percentile within the state. About 10,727 people live in Excelsior Springs, Missouri.

What a retrofit costs in Excelsior Springs

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

Earthquake insurance for a Excelsior Springs 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 Excelsior Springs address.

More on how this number was built

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