What is a “new danger” and how it is marked for identification by the mariner?

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Asked on May 28, 2021
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A new danger is the term used to describe newly discovered hazards which have not yet been indicated in nautical publications. They may include naturally occurring obstructions such as sandbanks and rocks or man made dangers such as wrecks. They are marked using the Emergency Wreck Marking Buoy. 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 marks or cardinal marks should be deployed and charts updated.

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Posted by marinetales
Answered on May 28, 2021