Does Lewisburg, PA need an earthquake retrofit?

Lewisburg carries Seismic Design Category A under USGS's ASCE 7-16 model. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Nationally, Lewisburg ranks above 15% of the 4,875 cities in this dataset for seismic hazard - the 15th percentile.

Lewisburg by the numbers

The raw figures: peak ground acceleration 0.051g, short-period spectral response 0.105g, 1-second spectral response 0.041g. Among 193 Pennsylvania cities in this dataset, Lewisburg ranks 173 for seismic hazard, the 10th percentile within the state. About 5,253 people live in Lewisburg, Pennsylvania.

Retrofit economics for Lewisburg

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Pennsylvania. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

What this means for insurance

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Lewisburg address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Lewisburg's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.