Does Richmond Hill, GA need an earthquake retrofit?

Richmond Hill carries Seismic Design Category C under USGS's ASCE 7-16 model. Moderate seismic hazard. Code adds irregular-building restrictions and requires bracing of some nonstructural components (e.g. tall shelving, water heaters) in addition to structural detailing. That puts Richmond Hill in the 73th percentile nationally for seismic hazard - higher than 73% of the 4,875 US cities USGS was checked against here.

Where Richmond Hill sits in Georgia

USGS's underlying values for Richmond Hill: 0.136g peak ground acceleration, 0.254g at short period, 0.099g at 1 second. Within Georgia alone, Richmond Hill ranks 22 of 148 cities by seismic hazard - the 86th percentile in-state. Richmond Hill has a population of about 19,839.

Retrofit economics for Richmond Hill

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 Georgia 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 Georgia.

What this means for insurance

A Richmond Hill 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 Richmond Hill's figures come from

Richmond Hill's Category C 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 C does and doesn't tell you about Richmond Hill.