Greenville, AL: what USGS's seismic model says

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. Rank it against the rest of the country and Greenville sits at the 32th percentile for seismic hazard among 4,875 US cities.

How Greenville compares

USGS's underlying values for Greenville: 0.054g peak ground acceleration, 0.113g at short period, 0.07g at 1 second. Within Alabama alone, Greenville ranks 82 of 107 cities by seismic hazard - the 24th percentile in-state. Greenville has a population of about 6,983.

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 Alabama 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 Alabama.

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.