Does Broadview Heights, OH need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Broadview Heights is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. That puts Broadview Heights in the 47th percentile nationally for seismic hazard - higher than 47% of the 4,875 US cities USGS was checked against here.

Where Broadview Heights sits in Ohio

The raw figures: peak ground acceleration 0.072g, short-period spectral response 0.136g, 1-second spectral response 0.05g. Among 254 Ohio cities in this dataset, Broadview Heights ranks 86 for seismic hazard, the 66th percentile within the state. About 19,792 people live in Broadview Heights, Ohio.

What a retrofit costs in Broadview Heights

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

More on how this number was built

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