Royal Palm Beach, FL: what USGS's seismic model says

Royal Palm Beach 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. Rank it against the rest of the country and Royal Palm Beach sits at the 4th percentile for seismic hazard among 4,875 US cities.

Royal Palm Beach by the numbers

USGS's underlying values for Royal Palm Beach: 0.022g peak ground acceleration, 0.046g at short period, 0.024g at 1 second. Within Florida alone, Royal Palm Beach ranks 148 of 228 cities by seismic hazard - the 35th percentile in-state. Royal Palm Beach has a population of about 41,948.

Retrofit economics for Royal Palm Beach

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 Royal Palm Beach home

A Royal Palm Beach 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 Royal Palm Beach's figures come from

Royal Palm Beach'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 Royal Palm Beach.