Quakertown's Seismic Design Category, explained

Quakertown 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. Rank it against the rest of the country and Quakertown sits at the 56th percentile for seismic hazard among 4,875 US cities.

Quakertown by the numbers

USGS's underlying values for Quakertown: 0.1g peak ground acceleration, 0.18g at short period, 0.048g at 1 second. Within Pennsylvania alone, Quakertown ranks 34 of 193 cities by seismic hazard - the 83th percentile in-state. Quakertown has a population of about 9,302.

Retrofit economics for Quakertown

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.

Insuring against this, not just retrofitting

A Quakertown 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 Quakertown's figures come from

Quakertown'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 Quakertown.