New Hempstead, NY: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, New Hempstead is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts New Hempstead in the 65th percentile nationally for seismic hazard - higher than 65% of the 4,875 US cities USGS was checked against here.

Where New Hempstead sits in New York

The raw figures: peak ground acceleration 0.18g, short-period spectral response 0.291g, 1-second spectral response 0.061g. Among 170 New York cities in this dataset, New Hempstead ranks 29 for seismic hazard, the 83th percentile within the state. About 5,515 people live in New Hempstead, New York.

Retrofit economics for New Hempstead

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.

Earthquake insurance for a New Hempstead 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 New Hempstead address.

More on how this number was built

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