Does Briarcliff Manor, NY need an earthquake retrofit?

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

How Briarcliff Manor compares

The raw figures: peak ground acceleration 0.182g, short-period spectral response 0.294g, 1-second spectral response 0.061g. Among 170 New York cities in this dataset, Briarcliff Manor ranks 16 for seismic hazard, the 91th percentile within the state. About 7,440 people live in Briarcliff Manor, New York.

What a retrofit costs in Briarcliff Manor

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 Briarcliff Manor address.

More on how this number was built

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