Park Ridge's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Park Ridge in Seismic Design Category B: 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 Park Ridge sits at the 66th percentile for seismic hazard among 4,875 US cities.

Park Ridge by the numbers

USGS's underlying values for Park Ridge: 0.184g peak ground acceleration, 0.297g at short period, 0.061g at 1 second. Within New Jersey alone, Park Ridge ranks 21 of 194 cities by seismic hazard - the 90th percentile in-state. Park Ridge has a population of about 9,634.

What a retrofit costs in Park Ridge

A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by New Jersey specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in New Jersey.

Earthquake insurance for a Park Ridge home

A Park Ridge homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.

Where Park Ridge's figures come from

Park Ridge's Category B and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category B does and doesn't tell you about Park Ridge.