Does Haledon, NJ need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Haledon in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Haledon in the 65th percentile nationally for seismic hazard - higher than 65% of the 4,875 US cities USGS was checked against here.

Where Haledon sits in New Jersey

The raw figures: peak ground acceleration 0.179g, short-period spectral response 0.29g, 1-second spectral response 0.06g. Among 194 New Jersey cities in this dataset, Haledon ranks 60 for seismic hazard, the 69th percentile within the state. About 9,063 people live in Haledon, New Jersey.

Bracing and bolting: the actual cost

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.

Earthquake insurance for a Haledon 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 Haledon address.

More on how this number was built

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