Does Blue Ash, OH need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Blue Ash in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Blue Ash in the 45th percentile nationally for seismic hazard - higher than 45% of the 4,875 US cities USGS was checked against here.

How Blue Ash compares

USGS's underlying values for Blue Ash: 0.07g peak ground acceleration, 0.142g at short period, 0.075g at 1 second. Within Ohio alone, Blue Ash ranks 129 of 254 cities by seismic hazard - the 49th percentile in-state. Blue Ash has a population of about 13,616.

What a retrofit costs in Blue Ash

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.

Earthquake insurance for a Blue Ash home

A Blue Ash 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 Blue Ash's figures come from

Blue Ash'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 Blue Ash.