Carlisle's Seismic Design Category, explained

Carlisle carries Seismic Design Category B under USGS's ASCE 7-16 model. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Carlisle ranks above 45% of the 4,875 cities in this dataset for seismic hazard - the 45th percentile.

How Carlisle compares

USGS's underlying values for Carlisle: 0.07g peak ground acceleration, 0.139g at short period, 0.072g at 1 second. Within Ohio alone, Carlisle ranks 136 of 254 cities by seismic hazard - the 47th percentile in-state. Carlisle has a population of about 5,855.

What a retrofit costs in Carlisle

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 Carlisle 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 Carlisle's figures come from

Carlisle'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 Carlisle.