New Haven, IN: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, New Haven 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 New Haven sits at the 43th percentile for seismic hazard among 4,875 US cities.

New Haven by the numbers

USGS's underlying values for New Haven: 0.068g peak ground acceleration, 0.133g at short period, 0.064g at 1 second. Within Indiana alone, New Haven ranks 76 of 126 cities by seismic hazard - the 40th percentile in-state. New Haven has a population of about 16,200.

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 Indiana 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 Indiana.

What this means for insurance

A New Haven 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 New Haven's figures come from

New Haven'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 New Haven.