Does Milford, CT need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Milford 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 Milford sits at the 59th percentile for seismic hazard among 4,875 US cities.

Where Milford sits in Connecticut

USGS's underlying values for Milford: 0.114g peak ground acceleration, 0.202g at short period, 0.053g at 1 second. Within Connecticut alone, Milford ranks 7 of 21 cities by seismic hazard - the 70th percentile in-state. Milford has a population of about 51,004.

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 Connecticut 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 Connecticut.

What this means for insurance

A Milford 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 Milford's figures come from

Milford'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 Milford.