Riverview, MI: what USGS's seismic model says

Riverview 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. Nationally, Riverview ranks above 34% of the 4,875 cities in this dataset for seismic hazard - the 34th percentile.

How Riverview compares

The raw figures: peak ground acceleration 0.056g, short-period spectral response 0.11g, 1-second spectral response 0.047g. Among 153 Michigan cities in this dataset, Riverview ranks 20 for seismic hazard, the 88th percentile within the state. About 12,011 people live in Riverview, Michigan.

What a retrofit costs in Riverview

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

More on how this number was built

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