Clewiston's Seismic Design Category, explained

Clewiston 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 Clewiston in the 6th percentile nationally for seismic hazard - higher than 6% of the 4,875 US cities USGS was checked against here.

How Clewiston compares

USGS's underlying values for Clewiston: 0.024g peak ground acceleration, 0.05g at short period, 0.025g at 1 second. Within Florida alone, Clewiston ranks 123 of 228 cities by seismic hazard - the 46th percentile in-state. Clewiston has a population of about 7,496.

What a retrofit costs in Clewiston

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.

Earthquake insurance for a Clewiston home

A Clewiston 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 Clewiston's figures come from

Clewiston'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 Clewiston.