SK A340
Topic Author
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Ships Lost In The Tsunami

Wed Dec 29, 2004 7:18 am

Unfortunately not only Asia is affected by the horrible tsunami. Reports from Africa, mainly Somalia, tells us about casualties there too, which means that the wave moved over the entire Indian Ocean and even had enough energy to destroy areas in Africa. Does anyone know anything about the ship traffic in the Indian Ocean? When I look at the map at http://www.redcross.org It looks like the tsunami has passed the entrance/exit to the Red Sea, which means the entrance/exit to the Suez channel. How many ships can we expect being reported as missing or be lost due to this disaster and what is the average number of crew members in a trans-ocean ship? And what about the cargo in those ships? Also, is this a popular area for cruisers? If so, I'm afraid we can add a lot more to the execrable statistics.

/SK A340
 
ConcordeBoy
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:24 am

Keep in mind that the only ships that would be affected would be those at dock or in-harbor... 'course, that could still be a considerable number.

A ship that's out to sea (at least beyond the perimeter of the continental shelf) would barely even feel a tsunami passing underneath.
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Boeing4ever
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:24 am

A Tsunami is undetectable on the Ocean surface as it travels the open ocean...it is only when the energy begins to hit land and shallow waters that the water is forced up into a tidal wave which crashes ashore. Unless the ships were close to land, most in the open sea probably didn't even notice it.

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SK A340
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:27 am


I forgot that, thanks for the reminder. How close to the coast is a tsunami detectable or at what depth is it detectable?

/SK A340
 
b757300
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:32 am

Ships in the open ocean most likely didn't even notice the tsunami. When a tsunami is traveling through deep water, they range from from a few inches to a few feet high. It will pass as nothing more than a large swell if noticeable at all. Only when they get close to shore, and the sea floor rises, does the tsunami's height grow.

The successive waves of a tsunami in the deep sea have such great length and so little height they are not visually recognizable from a surface vessel or from an airplane. The passing waves produce only a gentle rise and fall of the sea surface. During the April 1946 tsunami at Hawai`i, ships standing off the coasts observed tremendous waves breaking on shore but did not detect any change in sea level at their offshore locations.

http://www.prh.noaa.gov/ptwc/abouttsunamis.htm
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ConcordeBoy
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:33 am

Depends on the coast itself.

A gradually-sloping coastline will not only produce a noticeable wave while the tsunami is still far away from shore.... but will also offer the tell-tale warning sign of an ocean drawback, which could last for up to a half hour.



A deepwater coastline may receive no warning at all, until the moment the wave strikes.
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SATL382G
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 7:33 am

With the right instrument a tsunami is detectable by a ship/bouy at sea. There is a minute change in overall sea height as the wave passes. Their are even satellites that can detect a tsunami at sea.
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ZKSUJ
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 6:09 pm

What about the train in Sri Lanka that was derailed and toppled over by the disaster? 1000 odd people were predicted to be on that train. (according t9o the news)
 
777ER
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RE: Ships Lost In The Tsunami

Wed Dec 29, 2004 6:14 pm

Some photos have showed some fishing boats, and even a whole communities fishing fleet on the roads
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Flying-Tiger
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RE: Ships Lost In The Tsunami

Sun Jan 02, 2005 11:01 pm

The cement carrier "Sinar Andalas" capsized in the port of Lhok Nga (Indonesia), leaving 15 crew missing. That´s all concerning larger ships, an not fishery units.
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Alessandro
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RE: Ships Lost In The Tsunami

Sun Jan 02, 2005 11:14 pm

One passenger ship lost on the Andamans, rumors of a lost Japanese oil-tanker outside Indonesia, Yemen and Oman hit so surely some ships lost there.
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planespotterx
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RE: Ships Lost In The Tsunami

Tue Jan 04, 2005 7:30 am

Found a pic of a overturned ship on the BBC site, not sure if its a tanker or oil ship though.

http://news.bbc.co.uk/1/hi/in_pictures/4142425.stm

BTW is on page 6

[Edited 2005-01-03 23:35:29]
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