Croton-on-Hudson's Seismic Design Category, explained

Croton-on-Hudson 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. Rank it against the rest of the country and Croton-on-Hudson sits at the 65th percentile for seismic hazard among 4,875 US cities.

Where Croton-on-Hudson sits in New York

USGS's underlying values for Croton-on-Hudson: 0.18g peak ground acceleration, 0.291g at short period, 0.061g at 1 second. Within New York alone, Croton-on-Hudson ranks 27 of 170 cities by seismic hazard - the 85th percentile in-state. Croton-on-Hudson has a population of about 8,232.

Bracing and bolting: the actual cost

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 York 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 York.

Insuring against this, not just retrofitting

A Croton-on-Hudson 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 Croton-on-Hudson's figures come from

Croton-on-Hudson'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 Croton-on-Hudson.