Does Lynbrook, NY need an earthquake retrofit?

Lynbrook 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 Lynbrook sits at the 62th percentile for seismic hazard among 4,875 US cities.

How Lynbrook compares

The raw figures: peak ground acceleration 0.157g, short-period spectral response 0.26g, 1-second spectral response 0.057g. Among 170 New York cities in this dataset, Lynbrook ranks 64 for seismic hazard, the 63th percentile within the state. About 20,684 people live in Lynbrook, New York.

Retrofit economics for Lynbrook

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.

What this means for insurance

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 Lynbrook address.

More on how this number was built

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