Does Sedona, AZ need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Sedona is Category C. Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. Nationally, Sedona ranks above 73% of the 4,875 cities in this dataset for seismic hazard - the 73th percentile.

Sedona by the numbers

The raw figures: peak ground acceleration 0.131g, short-period spectral response 0.295g, 1-second spectral response 0.093g. Among 57 Arizona cities in this dataset, Sedona ranks 11 for seismic hazard, the 82th percentile within the state. About 9,778 people live in Sedona, Arizona.

What a retrofit costs in Sedona

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

Earthquake insurance for a Sedona 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 Sedona address.

More on how this number was built

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