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Thread: tsunami

  1. #1 tsunami 
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    Remarkable photos from Japan
    The tsunami disaster took place 6 months ago. The link below will display several sequences of 3 pictures. Each sequence shows the same location at three different times: (a) shortly after Tsunami, (b), three months later, and six months later.
    The Frame: Japan marks 6 months since earthquake, tsunami
    The pictures show how much can be accomplished in a short time.
    Ludwik Kowalski (see Wikipedia)
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  3. #2  
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    So the question is will Ludwik actually participate in the thread here?


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  4. #3  
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    It is encouraging to see that life does indeed go on, but is there anything else upon which to comment? Can tsunamis and the earthquakes which produce them be predicted or even averted? If so, what agency or agency should be responsible?
    The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it.- Thucydides
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  5. #4  
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    To The Finger Prince

    No.

    Tsunamis and earthquakes cannot be predicted or averted. The nearest thing to a prediction is to say a place or time is higher than normal risk. Even then, a place and time considered 'safe' may get hit

    The best you can do is to take suitable precautions. The Japanese build sea walls. Sadly not high enough for the last tsunami.
    Last edited by skeptic; November 2nd, 2011 at 05:17 PM. Reason: spelling
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  6. #5  
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    So much was once true of hurricanes, but today we have ample advance warning, though it wants improvement. Perhaps in time advances in technology will provide a similar warning prior to seismic events. Thank you for response. Like many, Prince had heard anecdotal evidence of altered behavior in animals, but such evidence is less than reliable statistically.

    Generally speaking it would appear that earthquake engineering is a wise precaution.
    The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it.- Thucydides
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    So much was once true of hurricanes, but today we have ample advance warning, though it wants improvement. Perhaps in time advances in technology will provide a similar warning prior to seismic events. Thank you for response. Like many, Prince had heard anecdotal evidence of altered behavior in animals, but such evidence is less than reliable statistically.
    I've never read about animal detection even really being tried. Most likely they can't predict them before they happen anyhow. What they detect is a quake that's already happened and starting to effect their location in ways that humans can't detect For example, a deer or elephant, which can detect lower frequencies than humans would "hear" a Tsunami about to crash into their nearby coastline well before the wave arrived.
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    Animal responses are more anecdotal than measured. However, it is possible that low frequency sound may carry a warning. The Boxing Day tsunami carried heaps of anecdotes of this kind - most of which are probably bullsh!t.

    One animal, though, that may respond that way is the elephant, and elephants were seen in Sri Lanka running away from the beach just before the tsunami. The reason is that elephants can detect infrasound. They can do this via their leg bones. Obviously an adaptation to detect other elephants walking. The infrasound vibrations travel through the ground and up the elephant's leg bones. Pretty cool!

    A tsunami might generate infrasound sufficient to warn an elephant.
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  9. #8  
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    Pacific Tsunami Warning System.
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    I am confused, what exactly was accomplished? Cause I see nothing worth labeling as an accomplishment. Sure after the Tsunami hit theirs no colors, there is junk everywhere, coating the landscape in a greyish slug of once was a beautiful place... Oh how devastating.

    Yeah sure excavators cleared the landscaped of this junk and with time the vegetation grew again. So what. Now.. it would be a different story if there were a massive flood barrier being built and tsunami proof buildings being. I'd say that's a whole lot accomplished in 6 months. unfortunately no just grass and streets people. It could all be built again I'd say in a few years. Still not worth labeling as an accomplishment.
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    Quote Originally Posted by skeptic View Post
    To The Finger Prince

    No.

    Tsunamis and earthquakes cannot be predicted or averted. The nearest thing to a prediction is to say a place or time is higher than normal risk. Even then, a place and time considered 'safe' may get hit

    The best you can do is to take suitable precautions. The Japanese build sea walls. Sadly not high enough for the last tsunami.
    Sure they can! Just rebuild the entire earth inside a computer simulation, update it in real time. and you can calculate and predict these disasters, with a varied degree of accuracy.
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    Japith

    Something like that might be possible in 50 to 100 years. Right now it is science fiction.
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    Quote Originally Posted by skeptic View Post
    Japith

    Something like that might be possible in 50 to 100 years. Right now it is science fiction.
    50-100 years it is then! Till then I guess. I hope I get to see technology like this sci-fi stuff. I hope....
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    Quote Originally Posted by skeptic View Post
    Japith

    Something like that might be possible in 50 to 100 years. Right now it is science fiction.
    Really? Today considerable effort is being expended in just such computer modeling regarding so called "anthropogenic global warming"- is THIS "science fiction" or perhaps even sheer bullshit?

    Not to digress unduly...
    The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it.- Thucydides
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    When I saw the news about the tsunami I remember I'm doing my assignment browsing Homework-desk.com really feel bad that time, but when I realized things why this happens now I understand now. All we need to do is to take care of our environment and be responsible for every action we do, because it might be the cause of the disaster in the future.
    Last edited by JessicaDonaghy; November 28th, 2013 at 11:11 PM.
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    Quote Originally Posted by JessicaDonaghy View Post
    When I saw the news about the tsunami I really feel bad, but when I realized things why this happens now I understand now. All we need to do is to take care of our environment and be responsible for every action we do, because it might be the cause of the disaster in the future.
    Short of human beings causing an environmental disaster by deliberate action (such as doing something huge to cause a massive landslide for example), how do you think taking care of the environment could prevent a tsunami?

    And thread necromancy!
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    We aren't at the point of engineering to effect Tsunami though we can and should take steps to warn and mitigate damage and loss of life from them. For example, along the Washington and Oregon State coast as scientist have come to understand there's high potential for a major subduction quake (last was ~300 years ago) similar to the Christmas quake, there's been extensive changes to code about where to build schools, education and marking of evacuation routes and plotting of maps most likely to be inundated, or geologically sensitive.

    We are also learning more about quakes being produce by isostatistic adjustment from melting glaciers, major hydro projects.



    Jessica welcome to the forum, but please check the thread dates. There's often high turnover of participants, so as a rule of thumb it's usually better to start a new thread than revive one over six months old or so.
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    Quote Originally Posted by Geo View Post
    Pacific Tsunami Warning System.
    Yes that is how we heard....and the sirens went on ALL NIGHT idiot took this!! What a nut!
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    Many times earthquakes are caused by a build up of pressure between two plates. If monitors could be positioned at different spacing so that they could monitor the pressure build up then we could use a small explosive device to relieve the pressure that was building up through that small explosion. The size of the explosion and the depth at which It would be placed would be calculated by scientists using computers to figure out just what was needed. This could be done anywhere that a monitoring device could be located and transmit the information daily to satellites to those scientists.
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  20. #19  
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    Quote Originally Posted by Tranquille View Post
    Quote Originally Posted by JessicaDonaghy View Post
    When I saw the news about the tsunami I really feel bad, but when I realized things why this happens now I understand now. All we need to do is to take care of our environment and be responsible for every action we do, because it might be the cause of the disaster in the future.
    Short of human beings causing an environmental disaster by deliberate action (such as doing something huge to cause a massive landslide for example), how do you think taking care of the environment could prevent a tsunami?

    And thread necromancy!
    Yeah! Exactly! Very much I agree with you! They're no concern for the environment!
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    Quote Originally Posted by babe View Post
    Quote Originally Posted by Geo View Post
    Pacific Tsunami Warning System.
    Yes that is how we heard....and the sirens went on ALL NIGHT idiot took this!! What a nut!
    Thanks for sharing this video Babe. It's so alarming that if we didn't give right action now, what happen to our tomorrow? :'(
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    Quote Originally Posted by cosmictraveler View Post
    Many times earthquakes are caused by a build up of pressure between two plates. If monitors could be positioned at different spacing so that they could monitor the pressure build up then we could use a small explosive device to relieve the pressure that was building up through that small explosion.
    Or the explosion could cause the quake, kill thousands and result in lawsuits and criminal trials for everyone involved. Probably not a risk anyone wants to take.
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    And we should note what explosions do. They shift things around.

    I can't find the link from the other day when I was on another site, but people have noted correlations between large flooding events which dump ginormous quantities of material from the land onto the sea floor followed by an earthquake in that region a year or two later. I'll keep looking.
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  24. #23  
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    Quote Originally Posted by JessicaDonaghy View Post
    Quote Originally Posted by babe View Post
    Quote Originally Posted by Geo View Post
    Pacific Tsunami Warning System.
    Yes that is how we heard....and the sirens went on ALL NIGHT idiot took this!! What a nut!
    Thanks for sharing this video Babe. It's so alarming that if we didn't give right action now, what happen to our tomorrow? :'(
    Several of the sirens did not work......I am at about 65 feet above sea level......I heard the far away ones.....and one's far above me....ours didn't trigger but it was on the television.....I stayed up till 4 waiting for it.....the damage was amazing and this didn't hit us all that hard. That video was amazing, but the IDIOT taking it should NOT have been there. Tsunami waves are NOT predictable. The first may be small the 4th may be the BIG one...
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