Does Mishawaka, IN need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Mishawaka is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Nationally, Mishawaka ranks above 33% of the 4,875 cities in this dataset for seismic hazard - the 33th percentile.

How Mishawaka compares

The raw figures: peak ground acceleration 0.054g, short-period spectral response 0.11g, 1-second spectral response 0.061g. Among 126 Indiana cities in this dataset, Mishawaka ranks 117 for seismic hazard, the 7th percentile within the state. About 51,020 people live in Mishawaka, Indiana.

What a retrofit costs in Mishawaka

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 Mishawaka address.

More on how this number was built

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