Exeter, PA: what USGS's seismic model says

Exeter 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. That puts Exeter in the 37th percentile nationally for seismic hazard - higher than 37% of the 4,875 US cities USGS was checked against here.

Where Exeter sits in Pennsylvania

USGS's underlying values for Exeter: 0.061g peak ground acceleration, 0.123g at short period, 0.044g at 1 second. Within Pennsylvania alone, Exeter ranks 99 of 193 cities by seismic hazard - the 49th percentile in-state. Exeter has a population of about 5,590.

Retrofit economics for Exeter

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 Pennsylvania 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 Pennsylvania.

What this means for insurance

A Exeter 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 Exeter's figures come from

Exeter'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 Exeter.