Hagerstown, MD: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Hagerstown is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Nationally, Hagerstown ranks above 15% of the 4,875 cities in this dataset for seismic hazard - the 15th percentile.

Where Hagerstown sits in Maryland

The raw figures: peak ground acceleration 0.062g, short-period spectral response 0.122g, 1-second spectral response 0.042g. Among 46 Maryland cities in this dataset, Hagerstown ranks 38 for seismic hazard, the 18th percentile within the state. About 43,909 people live in Hagerstown, Maryland.

Bracing and bolting: the actual cost

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

Earthquake insurance for a Hagerstown home

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 Hagerstown address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Hagerstown'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.