Does Seminole, FL need an earthquake retrofit?

Under the seismic model IBC and ASCE 7 use for new construction, Seminole is Category A. Lowest seismic design category. Building code requires no seismic-specific detailing here beyond ordinary construction practice. Nationally, Seminole ranks above 5% of the 4,875 cities in this dataset for seismic hazard - the 5th percentile.

Where Seminole sits in Florida

USGS's underlying values for Seminole: 0.023g peak ground acceleration, 0.05g at short period, 0.029g at 1 second. Within Florida alone, Seminole ranks 134 of 228 cities by seismic hazard - the 41th percentile in-state. Seminole has a population of about 19,395.

What a retrofit costs in Seminole

A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by Florida specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in Florida.

Insuring against this, not just retrofitting

A Seminole homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.

Where Seminole's figures come from

Seminole's Category A and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category A does and doesn't tell you about Seminole.