Walls of Water

This is very bad news: an 8.9 underwater earthquake near the island of Sumatra in Indonesia has apparently killed thousands of people across South and Southeast Asia, because of the enormous tsunami (tidal waves) it set up. "Waves as high as twenty feet," combined with densely populated areas, many of which are known for low infrastructure, can only spell disaster. I bet the International Committee of the Red Cross could use some help. This is apparently the most powerful earthquake to shake the planet since 1964.