Dormont, PA: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Dormont is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Dormont in the 24th percentile nationally for seismic hazard - higher than 24% of the 4,875 US cities USGS was checked against here.

How Dormont compares

USGS's underlying values for Dormont: 0.043g peak ground acceleration, 0.089g at short period, 0.045g at 1 second. Within Pennsylvania alone, Dormont ranks 127 of 193 cities by seismic hazard - the 34th percentile in-state. Dormont has a population of about 7,922.

Bracing and bolting: the actual cost

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.

Earthquake insurance for a Dormont home

A Dormont 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 Dormont's figures come from

Dormont'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 Dormont.