QuakeRetrofitCheck

Does Jackson, OH need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Jackson in Seismic Design 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 Jackson sits at the 42th percentile for seismic hazard among 4,875 US cities.

How Jackson compares

USGS's underlying values for Jackson: 0.067g peak ground acceleration, 0.132g at short period, 0.064g at 1 second. Within Ohio alone, Jackson ranks 168 of 254 cities by seismic hazard - the 34th percentile in-state. Jackson has a population of about 6,226.

What a retrofit costs in Jackson

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 Ohio 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 Ohio.

What this means for insurance

A Jackson 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 Jackson's figures come from

Jackson'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 Jackson.