Porter, IN: what USGS's seismic model says

Porter 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 Porter in the 31th percentile nationally for seismic hazard - higher than 31% of the 4,875 US cities USGS was checked against here.

Where Porter sits in Indiana

The raw figures: peak ground acceleration 0.053g, short-period spectral response 0.109g, 1-second spectral response 0.064g. Among 126 Indiana cities in this dataset, Porter ranks 123 for seismic hazard, the 2th percentile within the state. About 5,190 people live in Porter, Indiana.

What a retrofit costs in Porter

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.

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 Porter address.

More on how this number was built

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