This (http://freevideocoding.com/flvplayer.sw ... start=true) is perhaps the best video I've seen of the tsunami that hit Japan.

WOW, that was something

River

Riverwind (imported) wrote: Fri Mar 25, 2011 9:42 pm WOW, that was something

River

Yeah. Something quite horrible

The only good thing to come out of this could be more research on tectonic plates and perhaps an effective monitoring system.

Is there an effect whereby a massive release of strain energy in one part of the crust and the plate's movement leads to an increase in strain energy elsewhere? Thus increasing the probability of another event soon after.

For example could the event that hit Japan affect the situation along the San Andreas fault?

Kortpeel (imported) wrote: Fri Mar 25, 2011 10:56 pm Is there an effect whereby a massive release of strain energy in one part of the crust and the plate's movement leads to an increase in strain energy elsewhere? Thus increasing the probability of another event soon after.

For example could the event that hit Japan affect the situation along the San Andreas fault?

From what I have seen, you do see lesser earthquakes happening on a scale of, oh, a hundred miles, when the release in one place transfers stress laterally.

I wouldn't worry too much about an earthquake in Japan affecting the San Andreas. California is perfectly capable of geneating its own stesses.

Keep in mind that the earth is a very dynamic system behaving like molasses. There are places where the hot stuff is rising and then cooling and spreading out, forming a 'plate.' There are places where one plate is forced under another one, ie. Japan, causing earthquakes. Because the spreading centers are not uniform, there are sections where there is a lot of material rising and spreading out and sections where there is less. The difference in spreading causing a whole other set of stresses and actually offsets of the linear spreading center. The San Andreas is one of those offsets of a spreading center where the stresses from the differences in spreading causes earthquakes.

At least with the San Andras it is just two plates moving in opposite directions, in Japan there are three. But that Tsunami, OMG, that was enough to give you nightmares.

River

These videos and the ones a few years ago impressed me at how the advancing water moves more like a pool of mercury then a cresting wave, Hollywood style.

Crescent City is a tsunami magnet and was effected by the last event.

Driving on the mountainous, rocky highway 101 the view of Crescent City is like a flat plain barely above sea level. Family in Humboldt County who lived in the San Fernando valley before claim in Southern California earthquakes feel more like a rolling but, up there in the North - the ground jump.

Moi

On a bluff, safe. Don't worry

moi621 (imported) wrote: Sat Mar 26, 2011 3:56 pm These videos and the ones a few years ago impressed me at how the advancing water moves more like a pool of mercury then a cresting wave, Hollywood style.

Crescent City is a tsunami magnet and was effected by the last event.

Driving on the mountainous, rocky highway 101 the view of Crescent City is like a flat plain barely above sea level. Family in Humboldt County who lived in the San Fernando valley before claim in Southern California earthquakes feel more like a rolling but, up there in the North - the ground jump.

Moi

On a bluff, safe. Don't worry

moi,

Interesting that you should make that observation, I mean about the scale and the liquid looking more like mercury than water.

The ratio of surface tension of mercury to the surface tension of water should give you a scale that would be directly comparable to the minification of the camera image.

In other words, if you measured the image of 1/10 of a foot to a 10 foot height of the object being photographed, the ratio of the surface tensions should be about 1 to 100.

This is apparent in movies like Godzilla where the models were not corrected for scale as they were in the train and bus wreck at the beginning of the movie The Fugitive that starred Harrison Ford and Tommy Lee Jones.

The model in the Fugitive was photographed using a high speed camera and then the frames per second was slowed down by a ratio determined by the scale of the model to real life objects. The results are a realism that rivets you to the images of the movie.

To make the tsunami look more real you would have to use a high speed camera and then speed the frames per second up. Then the water would no longer look like flowing mercury but instead like fast flowing water.

Or, you could film it from much closer than the 5,000 to 10,000 that the plane doing the photography was flying at...

moi,

A-1 (imported) wrote: Sat Mar 26, 2011 9:17 pm Interesting that you should make that observation, I mean about the scale and the liquid looking more like mercury than water.

The ratio of surface tension of mercury to the surface tension of water should give you a scale that would be directly comparable to the minification of the camera image.

In other words, if you measured the image of 1/10 of a foot to a 10 foot height of the object being photographed, the ratio of the surface tensions should be about 1 to 100.

This is apparent in movies like Godzilla where the models were not corrected for scale as they were in the train and bus wreck at the beginning of the movie The Fugitive that starred Harrison Ford and Tommy Lee Jones.

The model in the Fugitive was photographed using a high speed camera and then the frames per second was slowed down by a ratio determined by the scale of the model to real life objects. The results are a realism that rivets you to the images of the movie.

To make the tsunami look more real you would have to use a high speed camera and then speed the frames per second up. Then the water would no longer look like flowing mercury but instead like fast flowing water.

Or, you could film it from much closer than the 5,000 to 10,000 that the plane doing the photography was flying at...

The mercury reference was in regard to the lack of a surfer's dream wave crest ala Hollywood as the water moved in. That's all. Did anyone notice a crest?

Moi

http://www.youtube.com/watch?v=l2sfev-gu3I

moi621 (imported) wrote: Sat Mar 26, 2011 10:47 pm The mercury reference was in regard to the lack of a surfer's dream wave crest ala Hollywood as the water moved in. That's all. Did anyone notice a crest?

Moi

http://www.youtube.com/watch?v=l2sfev-gu3I

I would suggest you read up on the Tsunami and learn how it works.

River

moi621 (imported) wrote: Sat Mar 26, 2011 10:47 pm The mercury reference was in regard to the lack of a surfer's dream wave crest ala Hollywood as the water moved in. That's all. Did anyone notice a crest?

Moi

http://www.youtube.com/watch?v=l2sfev-gu3I

No crest on tsunami, it just rises up. No crest on overflowing bathtubs, toilets or coffee pots, either...

LOOK AT THE dark SIDE. THE WORLD TRADE CENTERS CANNOT BE KNOCKED DOWN NOW... (

moi621 (imported) wrote: Sat Mar 26, 2011 10:47 pm http://www.youtube.com/watch?v=

Cf0SkdKQzNg)

OR reality, up close and personal... (

moi621 (imported) wrote: Sat Mar 26, 2011 10:47 pm http://www.youtube.com/watch?v=

w9ygYqj4rVM&NR=1)