Greenville's Seismic Design Category, explained

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Greenville in Seismic Design Category B: Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Greenville in the 55th percentile nationally for seismic hazard - higher than 55% of the 4,875 US cities USGS was checked against here.

How Greenville compares

USGS's underlying values for Greenville: 0.095g peak ground acceleration, 0.173g at short period, 0.073g at 1 second. Within Ohio alone, Greenville ranks 11 of 254 cities by seismic hazard - the 96th percentile in-state. Greenville has a population of about 12,701.

What a retrofit costs in Greenville

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 Greenville 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 Greenville's figures come from

Greenville'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 Greenville.