Does Hightstown, NJ need an earthquake retrofit?

Hightstown 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 Hightstown in the 60th percentile nationally for seismic hazard - higher than 60% of the 4,875 US cities USGS was checked against here.

Where Hightstown sits in New Jersey

The raw figures: peak ground acceleration 0.135g, short-period spectral response 0.23g, 1-second spectral response 0.053g. Among 194 New Jersey cities in this dataset, Hightstown ranks 146 for seismic hazard, the 25th percentile within the state. About 5,978 people live in Hightstown, New Jersey.

Retrofit economics for Hightstown

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 Hightstown 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 Hightstown address.

More on how this number was built

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