A repeat of a 1926 Miami hurricane today could be the costliest disaster in US history
Catastrophe modelers estimate a re-run of the Great Miami Hurricane would now cause around $280 billion in damage, more than Hurricane Katrina, reflecting a 23-fold increase in the region's population since 1926.
According to a piece published Saturday by Jeff Masters on Yale Climate Connections, catastrophe modeling firm Verisk estimates that a repeat of the 1926 Great Miami Hurricane would now cause about $230 billion in gross insured losses in 2025 dollars, plus another $50 billion in uninsured damage, for a total of roughly $280 billion. Other modelers have produced similar figures: Moody's estimated $232 billion in total losses for a comparable Category 5 scenario, while a 2026 academic study put normalized damage for South Florida at $218 billion.
The projected $280 billion would represent about 1% of US GDP and would surpass Hurricane Katrina's inflation-adjusted $213 billion in damage, making it the costliest weather disaster in US history. The dramatic jump from the storm's original 1926 damage total of $105 million reflects Miami-Dade County's roughly 23-fold increase in population and 41-fold increase in housing units since then.
The analysis underscores how much modern coastal development, rather than any change in storm intensity, has driven up the potential cost of a major hurricane strike on South Florida.
Jeff Masters, Yale Climate Connections: https://yaleclimateconnections.org/2026/09/a-repeat-of-miamis-1926-hurricane-could-cost-over-280-billion-thats-more-than-hurricane-katrina/
This article was produced with the assistance of AI tools and reviewed by an editor before publication.
