Does Auburn, ME need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Auburn is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Auburn in the 66th percentile nationally for seismic hazard - higher than 66% of the 4,875 US cities USGS was checked against here.

Where Auburn sits in Maine

The raw figures: peak ground acceleration 0.183g, short-period spectral response 0.304g, 1-second spectral response 0.076g. Among 20 Maine cities in this dataset, Auburn ranks 8 for seismic hazard, the 63th percentile within the state. About 25,200 people live in Auburn, Maine.

What a retrofit costs in Auburn

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

Insuring against this, not just retrofitting

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 Auburn address.

More on how this number was built

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