Roselle Park, NJ: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Roselle Park is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Roselle Park in the 64th percentile nationally for seismic hazard - higher than 64% of the 4,875 US cities USGS was checked against here.

Where Roselle Park sits in New Jersey

The raw figures: peak ground acceleration 0.171g, short-period spectral response 0.28g, 1-second spectral response 0.059g. Among 194 New Jersey cities in this dataset, Roselle Park ranks 80 for seismic hazard, the 59th percentile within the state. About 14,390 people live in Roselle Park, New Jersey.

Retrofit economics for Roselle Park

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.

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 Roselle Park address.

More on how this number was built

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