Mystery Wave Strikes Maine Harbor

A series of large, unexpected tsunami-like waves as high as 12 feet struck Maine's Boothbay Harbor on Oct. 28, and there's still no explanation for what caused them.  Read about it, and read about other instances of rogue waves.  (And, yes, they are real.)

http://www.livescience.com/strangenews/081104-rogue-wave.html

http://en.wikipedia.org/wiki/Rogue_wave