Worcester, MA: what USGS's seismic model says

Worcester 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. Rank it against the rest of the country and Worcester sits at the 59th percentile for seismic hazard among 4,875 US cities.

Where Worcester sits in Massachusetts

USGS's underlying values for Worcester: 0.117g peak ground acceleration, 0.211g at short period, 0.06g at 1 second. Within Massachusetts alone, Worcester ranks 37 of 58 cities by seismic hazard - the 37th percentile in-state. Worcester has a population of about 211,286.

What a retrofit costs in Worcester

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.

Insuring against this, not just retrofitting

A Worcester 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 Worcester's figures come from

Worcester'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 Worcester.