Emergency Wreck Buoy
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An Emergency wreck buoy is used to warn of a new wreck which has not yet been listed in maritime documents. The buoy is expected to be deployed for the first 24-72 hours after the wreck occurs. After that time more permanent buoyage (such as
isolated danger mark An Isolated Danger Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate a hazard to shipping such as a partially submerged rock. It is recognisable by its black and red ...
s or
cardinal mark A cardinal mark is a sea mark (a buoy or other floating or fixed structure) commonly used in maritime pilotage to indicate the position of a hazard and the direction of safe water. Cardinal marks indicate the direction of safety as a cardinal (c ...
s) should be deployed and charts updated. The buoy is designed to "provide a clear and unambiguous" mark of a new and uncharted danger. The buoy is painted with 4, 6 or 8 vertical stripes of alternate yellow and blue. In addition it may have the word "WRECK" painted on it. Optionally it may carry a vertical (St. George's) cross painted yellow. The light flashes alternate yellow and blue for one second each with a half second gap between. No other navigation mark uses blue. The
International Association of Marine Aids to Navigation and Lighthouse Authorities The International Organization for Marine Aids to Navigation (IALA), previously known as International Association of Lighthouse Authorities, is an association founded in 1957 to collect and provide nautical expertise and advice. IALA is also kn ...
(IALA) defined the buoy in response to the sinking of the and the subsequent collisions with the wreck by the Dutch vessel ''Nicola'' and Turkish-registered fuel carrier ''Vicky''.


See also

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Navigation Navigation is a field of study that focuses on the process of monitoring and controlling the motion, movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navig ...
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Lateral mark A lateral buoy, lateral post or lateral mark, as defined by the International Association of Marine Aids to Navigation and Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate the edge of a channel (geography), channel. Ea ...
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Cardinal mark A cardinal mark is a sea mark (a buoy or other floating or fixed structure) commonly used in maritime pilotage to indicate the position of a hazard and the direction of safe water. Cardinal marks indicate the direction of safety as a cardinal (c ...
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Safe water mark Examples of Safe Water Marks A safe water mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate the end of a channel. They usually imply that open, deep and safe water l ...
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Special mark A Special Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage. It is recognisable by its yellow colour and X, (also referred to as a St. Andrews Cross or saltire) top-mark. It has ...
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Isolated danger mark An Isolated Danger Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate a hazard to shipping such as a partially submerged rock. It is recognisable by its black and red ...


References

{{reflist Nautical terminology Navigational buoys