Portland, IN: what USGS's seismic model says

Portland 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 Portland in the 49th percentile nationally for seismic hazard - higher than 49% of the 4,875 US cities USGS was checked against here.

How Portland compares

The raw figures: peak ground acceleration 0.076g, short-period spectral response 0.145g, 1-second spectral response 0.07g. Among 126 Indiana cities in this dataset, Portland ranks 61 for seismic hazard, the 52th percentile within the state. About 6,233 people live in Portland, Indiana.

Bracing and bolting: the actual cost

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

More on how this number was built

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