Does Montpelier, VT need an earthquake retrofit?

Montpelier 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. That puts Montpelier in the 60th percentile nationally for seismic hazard - higher than 60% of the 4,875 US cities USGS was checked against here.

How Montpelier compares

The raw figures: peak ground acceleration 0.133g, short-period spectral response 0.243g, 1-second spectral response 0.074g. Among 8 Vermont cities in this dataset, Montpelier ranks 6 for seismic hazard, the 29th percentile within the state. About 7,915 people live in Montpelier, Vermont.

What a retrofit costs in Montpelier

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

Earthquake insurance for a Montpelier 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 Montpelier address.

More on how this number was built

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