Does Frederick, MD need an earthquake retrofit?

Frederick 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. Nationally, Frederick ranks above 44% of the 4,875 cities in this dataset for seismic hazard - the 44th percentile.

Where Frederick sits in Maryland

USGS's underlying values for Frederick: 0.068g peak ground acceleration, 0.132g at short period, 0.043g at 1 second. Within Maryland alone, Frederick ranks 19 of 46 cities by seismic hazard - the 60th percentile in-state. Frederick has a population of about 89,537.

What a retrofit costs in Frederick

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 Maryland 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 Maryland.

Earthquake insurance for a Frederick home

A Frederick 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 Frederick's figures come from

Frederick'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 Frederick.