Snowflake, AZ: what USGS's seismic model says

Snowflake carries Seismic Design Category B under USGS's ASCE 7-16 model. 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 Snowflake sits at the 58th percentile for seismic hazard among 4,875 US cities.

How Snowflake compares

The raw figures: peak ground acceleration 0.111g, short-period spectral response 0.245g, 1-second spectral response 0.076g. Among 57 Arizona cities in this dataset, Snowflake ranks 30 for seismic hazard, the 48th percentile within the state. About 6,736 people live in Snowflake, Arizona.

What a retrofit costs in Snowflake

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.

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 Snowflake address.

More on how this number was built

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