A tsunami video which shows the ocean falling down on the land
(Note: See follow-up entry which explains the wave nature of a tsunami.)
Peter H. writes:
See this horrifying video, one of the most instructive I’ve seen, in which we see some of what you’ve discussed previously (here and here), that the tsunami is not, in any way, a “wave” in the normal sense, but a sudden rise in the level of the entire surrounding sea resulting in the pouring of sea water down into the city, which is now below the level of the sea. Notice how quickly the elevation of the sea level happens. We also see the human element with an adult and child on a rooftop at the beginning and the building completely gone/submerged at the end and the screams of a woman as her house is washed away, presumably with her inside. Finally, just after the sea level has reached its zenith, we just begin to see it recede.
LA to Peter H.
In the video I see the ocean pouring continually onto the land. It’s very strange.Peter H. replies:
I’m now sort of thinking of tsunamis as rapid, exaggerated tidal surges. Although Wikipedia says the term “tidal wave” is a misnomer and out of favor and, of course, the cause of tsunamis is not “tidal” forces, I think it encapsulates well what appears to be happening here. In addition, Wikipedia shows a series of drawings showing what happens in subduction, when, before the earthquake, the land appears to be raised above its resting position and then is lowered during the earthquake. It may be that not only does the sea rise because of the surge, but that the land is actually lowered. The media have reported that the entire island of Japan changed position because of the earthquake. I suppose it’s possible that the positional change may be not only horizontal but vertical.LA replies:
But I think at Wikipedia it says that that ocean floor rises up and that this is what lifts the ocean and starts the wave.March 19
James S. writes:
Here is another video of the tsunami hitting the same port village but taken from a different vantage point.LA replies:
Yes, we’ve heard very little about the damage done by the earthquake before the wave came.
Posted by Lawrence Auster at March 18, 2011 10:21 AM | Send