Wrecks

Mariners are advised that ecdis may not display some isolated shoal depths when operating in "base or…

Ecdis System · NAVAREA IV 77/10

issued
2010-02-19 19:04Z
status
cancelled 2010-04-03 09:27Z (archive)
cancels
NAVAREA IV 70/10
authority
NAVAREA I 37/10 151800Z FEB 10; PVWA.
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

ECDIS SYSTEM.
1. MARINERS ARE ADVISED THAT ECDIS MAY NOT DISPLAY SOME
   ISOLATED SHOAL DEPTHS WHEN OPERATING IN "BASE OR
   STANDARD DISPLAY" MODE. ROUTE PLANNING AND MONITORING
   ALARMS FOR THESE SHOAL DEPTHS MAY NOT ALWAYS BE
   ACTIVATED. TO ENSURE SAFE NAVIGATION AND TO CONFIRM
   THAT A PLANNED ROUTE IS CLEAR OF SUCH DANGERS,
   MARINERS SHOULD VISUALLY INSPECT THE PLANNED ROUTE
   AND ANY DEVIATIONS FROM IT USING ECDIS CONFIGURED TO
   DISPLAY "ALL DATA". THE AUTOMATED VOYAGE PLANNING
   CHECK FUNCTION SHOULD NOT BE SOLELY RELIED UPON. THE
   INTERNATIONAL HYDROGRAPHIC ORGANIZATION (IHO) IS
   LEADING TECHNICAL ACTION TO RESOLVE THIS MATTER.
2. NGA HAS DONE A REVIEW OF DNC AND HAS CONCLUDED
   THAT THIS ERROR DOES NOT EFFECT DNC.
3. CANCEL NAVAREA IV 70/10.

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

25 wrecks & obstructions in force · see all

Wrecks

Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.