Milford's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Milford is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Rank it against the rest of the country and Milford sits at the 15th percentile for seismic hazard among 4,875 US cities.

Milford by the numbers

USGS's underlying values for Milford: 0.058g peak ground acceleration, 0.114g at short period, 0.039g at 1 second. Within Delaware alone, Milford ranks 8 of 11 cities by seismic hazard - the 30th percentile in-state. Milford has a population of about 14,079.

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 Delaware 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 Delaware.

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 A 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 A does and doesn't tell you about Milford.