Palmer Town's Seismic Design Category, explained

Under the seismic model IBC and ASCE 7 use for new construction, Palmer Town is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Palmer Town in the 54th percentile nationally for seismic hazard - higher than 54% of the 4,875 US cities USGS was checked against here.

How Palmer Town compares

USGS's underlying values for Palmer Town: 0.091g peak ground acceleration, 0.174g at short period, 0.056g at 1 second. Within Massachusetts alone, Palmer Town ranks 46 of 58 cities by seismic hazard - the 21th percentile in-state. Palmer Town has a population of about 12,388.

Bracing and bolting: the actual cost

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 Massachusetts 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 Massachusetts.

Earthquake insurance for a Palmer Town home

A Palmer Town 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 Palmer Town's figures come from

Palmer Town'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 Palmer Town.