Lenoir's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Lenoir is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Lenoir in the 60th percentile nationally for seismic hazard - higher than 60% of the 4,875 US cities USGS was checked against here.

How Lenoir compares

USGS's underlying values for Lenoir: 0.123g peak ground acceleration, 0.226g at short period, 0.081g at 1 second. Within North Carolina alone, Lenoir ranks 33 of 147 cities by seismic hazard - the 78th percentile in-state. Lenoir has a population of about 18,280.

Retrofit economics for Lenoir

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 North Carolina 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 North Carolina.

Insuring against this, not just retrofitting

A Lenoir 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 Lenoir's figures come from

Lenoir'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 Lenoir.