Bloomingdale, NJ: what USGS's seismic model says

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Bloomingdale in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Bloomingdale in the 63th percentile nationally for seismic hazard - higher than 63% of the 4,875 US cities USGS was checked against here.

Bloomingdale by the numbers

The raw figures: peak ground acceleration 0.165g, short-period spectral response 0.271g, 1-second spectral response 0.059g. Among 194 New Jersey cities in this dataset, Bloomingdale ranks 98 for seismic hazard, the 50th percentile within the state. About 7,795 people live in Bloomingdale, New Jersey.

Retrofit economics for Bloomingdale

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

More on how this number was built

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