Timeline: The 10 Worst U.S. Disasters of The Last Century | Timetoast

Mar 18, 1906

#10. San Francisco Earthquake

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Aug 20, 1910

#9. The Big Burn

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Jun 1, 1918

#8. Spanish Flu Pandemic

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Mar 18, 1925

#7. Tri-State Tornado

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Sep 21, 1938

#6. The New England Hurricane

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Mar 27, 1964

#5. The Great Alaskan Hurricane

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Apr 3, 1974

#4. Super Tornado Outbreak

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May 18, 1980

#3. Mount. St. Helens Eruption

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Mar 12, 1993

#2. Storm of the Century

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Aug 23, 2005

#1. Hurricane Katrina

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