IALA Emergency Wreck Marking Buoy
Blue and yellow vertical stripes marking new wrecks. Shows alternating blue and yellow flashing light.
The emergency wreck marking buoy is used to mark newly discovered wrecks that pose a danger to navigation until a permanent solution is established.
- Colour: blue and yellow vertical stripes - Topmark: standing/upright yellow cross - Light: alternating blue and yellow flashing, one blue + one yellow flash per period - Shape: pillar or spar - RACON: Morse code "D" (dash-dot-dot) - AIS: may be fitted with AIS transponder
This mark was introduced to provide a rapid, internationally standardized response to newly discovered dangers.
Puntos Clave
Blue and yellow vertical stripes — unique colour scheme
Marks NEW wrecks not yet on charts
Alternating blue/yellow flashing light
RACON signal: Morse D
Errores Frecuentes
Confusing with special marks (which are all yellow)
Not giving sufficient clearance — wreck position may not be precisely charted
Pon a Prueba tus Conocimientos
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