Floods

Hurricane San Ciriaco

Hurricane San Ciriaco struck Puerto Rico at a precarious point in its history. The United States had just taken possession of the island, and the 40 or so years leading up to the Spanish-American War had also been particularly tumultuous. 

The Vanport Flood

On May 30, 1948, a flood destroyed Vanport, Oregon. What really makes the story more than a historical footnote is how it tied in to the racial makeup of both Portland and Oregon at the time.

The Johnstown Flood

On May 31, 1889, the South Fork dam gave way, sending 20 million tons of water rushing toward Johnstown, Pennsylvania. The water swept up everything in its path, and it only took about 10 minutes to wash away Johnstown. But was nature solely to blame?

How the Boston Molasses Flood Worked

Today, people associate molasses with cookies and other sweets. Yet in 1919 molasses was used in munitions as well as food -- and Boston had one of the biggest tanks around. Learn how molasses flooded Boston in this podcast from HowStuffWorks.com.