Surf's Up

Last year's tsunami wave went around the world several times, being recorded in such places as Halifax, Nova Scotia and Callao, Peru.

I love reading about things like this. Another prime example is the shock wave from the eruption of Krakatoa in 1883 that circled the earth seven times (if I recall correctly) before finally dissipating. There's something about phenomena on that grand a geological scale that I find fascinating.