While that remains true, tsunamis and tidal waves differ in major ways, including in their formation ... The largest-ever tsunami wave was recorded in Alaska’s Lituya Bay in 1958 following ...

You know, I think a lot of us have a lot of wrong notions about what a tsunami looks like. You know, in the films, it looks like this giant wave, and it's actually much more like a wall of water.

8, 1817, according to newspapers of the time. Turns out, that tidal wave was actually a tsunami, launched by a powerful magnitude-7.4 earthquake that struck at about 4:30 a.m. ET near the northern ...