Amherst Town's Seismic Design Category, explained

Amherst Town 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, Amherst Town ranks above 53% of the 4,875 cities in this dataset for seismic hazard - the 53th percentile.

Amherst Town by the numbers

The raw figures: peak ground acceleration 0.089g, short-period spectral response 0.171g, 1-second spectral response 0.057g. Among 58 Massachusetts cities in this dataset, Amherst Town ranks 47 for seismic hazard, the 19th percentile within the state. About 40,989 people live in Amherst Town, Massachusetts.

What a retrofit costs in Amherst Town

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Massachusetts. 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 Amherst Town address.

More on how this number was built

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