Does Islamorada, Village of Islands, FL need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Islamorada, Village of Islands is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Rank it against the rest of the country and Islamorada, Village of Islands sits at the 0th percentile for seismic hazard among 4,875 US cities.

Islamorada, Village of Islands by the numbers

The raw figures: peak ground acceleration 0.014g, short-period spectral response 0.031g, 1-second spectral response 0.017g. Among 228 Florida cities in this dataset, Islamorada, Village of Islands ranks 227 for seismic hazard, the 0th percentile within the state. About 7,013 people live in Islamorada, Village of Islands, Florida.

Retrofit economics for Islamorada, Village of Islands

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for Florida. 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 Islamorada, Village of Islands address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Islamorada, Village of Islands'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.