Does Ephrata, PA need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Ephrata in Seismic Design Category B: 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 Ephrata sits at the 57th percentile for seismic hazard among 4,875 US cities.

Where Ephrata sits in Pennsylvania

USGS's underlying values for Ephrata: 0.103g peak ground acceleration, 0.185g at short period, 0.048g at 1 second. Within Pennsylvania alone, Ephrata ranks 18 of 193 cities by seismic hazard - the 91th percentile in-state. Ephrata has a population of about 13,719.

What a retrofit costs in Ephrata

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 Ephrata 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 Ephrata's figures come from

Ephrata'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 Ephrata.