Does Minnetonka, MN need an earthquake retrofit?

Minnetonka carries Seismic Design Category A under USGS's ASCE 7-16 model. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. That puts Minnetonka in the 6th percentile nationally for seismic hazard - higher than 6% of the 4,875 US cities USGS was checked against here.

How Minnetonka compares

The raw figures: peak ground acceleration 0.023g, short-period spectral response 0.049g, 1-second spectral response 0.029g. Among 155 Minnesota cities in this dataset, Minnetonka ranks 48 for seismic hazard, the 69th percentile within the state. About 52,651 people live in Minnetonka, Minnesota.

What a retrofit costs in Minnetonka

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

Earthquake insurance for a Minnetonka home

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 Minnetonka address.

More on how this number was built

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