Nyack, NY: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Nyack is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Nyack in the 66th percentile nationally for seismic hazard - higher than 66% of the 4,875 US cities USGS was checked against here.

Nyack by the numbers

The raw figures: peak ground acceleration 0.185g, short-period spectral response 0.299g, 1-second spectral response 0.062g. Among 170 New York cities in this dataset, Nyack ranks 8 for seismic hazard, the 96th percentile within the state. About 7,369 people live in Nyack, New York.

What a retrofit costs in Nyack

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for New York. 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 Nyack address.

More on how this number was built

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