Elmsford, NY: what USGS's seismic model says

Elmsford 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. That puts Elmsford in the 65th percentile nationally for seismic hazard - higher than 65% of the 4,875 US cities USGS was checked against here.

Where Elmsford sits in New York

The raw figures: peak ground acceleration 0.182g, short-period spectral response 0.295g, 1-second spectral response 0.061g. Among 170 New York cities in this dataset, Elmsford ranks 19 for seismic hazard, the 89th percentile within the state. About 5,168 people live in Elmsford, New York.

What a retrofit costs in Elmsford

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 Elmsford address.

More on how this number was built

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