Does Cliffside Park, NJ need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Cliffside Park is 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 Cliffside Park sits at the 65th percentile for seismic hazard among 4,875 US cities.

Where Cliffside Park sits in New Jersey

USGS's underlying values for Cliffside Park: 0.182g peak ground acceleration, 0.294g at short period, 0.061g at 1 second. Within New Jersey alone, Cliffside Park ranks 35 of 194 cities by seismic hazard - the 82th percentile in-state. Cliffside Park has a population of about 26,183.

Retrofit economics for Cliffside Park

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.

Insuring against this, not just retrofitting

A Cliffside Park 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 Cliffside Park's figures come from

Cliffside Park'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 Cliffside Park.