Does Denton, MD need an earthquake retrofit?

USGS's ASCE 7-16 seismic design model - the same standard building codes use - places Denton in Seismic Design Category A: Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Rank it against the rest of the country and Denton sits at the 15th percentile for seismic hazard among 4,875 US cities.

Denton by the numbers

The raw figures: peak ground acceleration 0.06g, short-period spectral response 0.118g, 1-second spectral response 0.04g. Among 46 Maryland cities in this dataset, Denton ranks 40 for seismic hazard, the 13th percentile within the state. About 5,049 people live in Denton, Maryland.

Retrofit economics for Denton

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 Denton 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 Denton address.

More on how this number was built

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