38 wrecks & obstructions in force

Dangerous wrecks, shoals and submerged obstructions.

What the archive shows

The available wrecks & obstructions archive contains 1,918 messages across 29 issue years, from 1998 to 2026. The year links below provide the source and sea-area breakdowns for each period.

The current list includes messages issued from 2019-03-07 to 2026-09-27. A warning can remain in force for an extended operation, so this list is not a list of new incidents.

nga_inforce accounts for 27 of 38 recorded messages (71%), the largest source in the current list group in this selection.

The NGA archive froze in 2024-05; live collection began 2026-08-17. Counts near that gap are incomplete. Separate messages may describe updates to the same activity.

  1. NAVAREA II 340/262026-09-27 11:45Z
    A partially submerged barge marked by a red buoy is a dangerous wreck in Sierra Leone at 14-41.65N 017-24.12W; navigate with caution and report to Dakar rescue center.
    Sierra Leone
  2. HYDROARC 242/262026-09-18 05:41Z
    A 0.3 meter rock depth and a dangerous submerged rock are reported in Amundsen Gulf, Canada, at 70-32.05N 115-59.06W and 70-30.05N 116-04.70W.
    Amundsen Gulf · Canada
  3. NAVAREA XI 408/262026-09-13 14:00Z
    A sunken wreck lies in the Java Sea at 04-32-31.8S 114-01-36.0E.
    Java Sea
  4. NAVAREA X 99/262026-09-06 06:27Z
    Motor vessel Limco Logger is reported stranded and suspected aground on a reef northeast of Cape Gloucester, West New Britain Province; ships should navigate with caution.
  5. HYDROPAC 2455/262026-08-27 11:21Z
    In the Eastern Indian Ocean, off India, fishing vessel Shri Balajaneya is sunk at 13-36.00N 074-36.50E.
    Eastern Indian Ocean · India
  6. NAVAREA XI 386/262026-08-24 03:00Z
    A sunken wreck exists in the Java Sea at 04-14-42S 113-44-18E.
    Java Sea
  7. NAVAREA II 298/262026-08-07 12:18Z
    A newly discovered dangerous wreck is located at 23-57.50N 015-50.00W near Cap Blanc; navigate with caution.
    Cap Blanc
  8. NAVAREA IV 709/262026-07-21 19:51Z
    Motor vessel Barima is sunk in the North Atlantic off Guyana at 07 degrees 28.23 minutes north, 58 degrees 23.40 minutes west.
    North Atlantic · Guyana
  9. HYDROPAC 1892/262026-07-01 11:40Z
    Depths of 6.2 meters reported in vicinity of 18-17.72N 072-55.18E and 18-17.77N 072-55.92E, Arabian Sea, India.
    Arabian Sea · India
  10. NAVAREA IV 525/262026-06-02 20:08Z
    An obstruction 20 meters below surface lies at 24-50.93N 077-48.83W in the Bahamas until 30 November; cancel message Dec 1, 2026.
    North Atlantic · Bahamas
  11. HYDROLANT 986/262026-05-21 14:25Z
    A dangerous wreck is located in the Gulf of Guinea, Nigeria at 04-18.50N 007-02.20E.
    Gulf of Guinea · Nigeria
  12. NAVAREA II 215/262026-05-21 09:04Z
    A dangerous wreck is reported in the Gulf of Guinea at 04-18.50N 007-02.20E. Navigate with caution and at reduced speed.
    Gulf of Guinea
  13. NAVAREA IV 345/262026-04-13 00:37Z
    Motor vessel Roswal is sunk at 08-40.88N 076-50.00W in the Caribbean Sea, Colombia.
    Caribbean Sea · Colombia
  14. HYDROLANT 582/262026-03-23 10:40Z
    Foul ground exists in a bounded area off Brazil until December 6, 2027.
    South Atlantic · Brazil
  15. NAVAREA IV 222/262026-03-10 21:15Z
    Barge Trader III lies sunk at 06-53.77N 057-53.43W in the North Atlantic near Guyana.
    North Atlantic · Guyana
  16. HYDROPAC 473/262026-02-16 16:43Z
    Depths of 12.9 meters reported in Borouge Channel at 24-09.00N 052-45.20E.
    U.A.E
  17. HYDROPAC 379/262026-02-08 14:06Z
    Barge Dream 1 sank in the Persian Gulf off Kuwait at 29°14.06'N 048°41.22'E.
    Persian Gulf · Kuwait
  18. NAVAREA IV 53/262026-01-20 01:13Z
    Dangerous wreck in Gulf of America near Mexico at 25-14.24N 097-07.72W.
    Gulf of America · Mexico
  19. HYDROPAC 10/262026-01-01 15:02Z
    In the Arabian Sea off Pakistan, the wreck buoy at 24-46.45N 066-57.09E is missing.
    Arabian Sea · Pakistan
  20. NAVAREA IV 1158/252025-10-27 23:47Z
    A dangerous wreck is located at 10-13.39N 064-42.22W in the Caribbean Sea near Venezuela.
    Caribbean Sea · Venezuela
  21. HYDROARC 178/252025-10-01 11:16Z
    Depths reported in Franklin Strait and McClintock Channel, Canada, range from 11.3 to 29.3 meters.
    Franklin Strait · Mcclintock Channel · Canada
  22. HYDROARC 175/252025-09-29 23:29Z
    A reported depth of 33.6 meters in McClintock Channel, Canada at 76-40.36N 102-16.62W.
    Mcclintock Channel · Canada
  23. NAVAREA IV 998/252025-09-19 14:11Z
    An unmarked submerged wellhead is located in the Caribbean Sea off Trinidad and Tobago at 10-28.29N 061-33.83W.
    Caribbean Sea
  24. HYDROPAC 2412/252025-09-19 09:07Z
    Dangerous wreck in South China Sea off Vietnam at 10-22.31N 107-46.96E.
    South China Sea · Vietnam
  25. NAVAREA XI 437/252025-09-19 07:00Z
    Sunken wreck exists in northern South China Sea at 10-22.31N 107-46.96E.
    South China Sea, Northern Part
  26. HYDROARC 148/252025-08-31 00:15Z
    A depth of 13.6 meters is reported in Lancaster Sound, Canada at 74-38.63N 091-20.54W.
    Lancaster Sound · Canada
  27. HYDROLANT 1213/252025-07-19 01:15Z
    Depths are less than charted in three areas off Brazil in the South Atlantic.
    South Atlantic · Brazil
  28. HYDROPAC 1819/252025-07-17 13:10Z
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
    North Pacific · Marshall Islands
  29. HYDROLANT 915/252025-05-31 02:02Z
    A reported depth of 18.3 meters at 20-35.71S 034-46.07W in the Western South Atlantic; previous warning cancelled.
    Western South Atlantic
  30. HYDROPAC 319/252025-02-07 15:54Z
    Foul ground reported in Persian Gulf off Qatar at 25-07.69N 052-53.09E, requiring anchor with 2.5 shackle chain.
    Persian Gulf · Qatar
  31. NAVAREA IV 797/242024-07-09 01:42Z
    A dangerous wreck exists in the Grenadines, eastern Caribbean Sea, at 12 degrees 35.75 minutes north, 061 degrees 24.44 minutes west.
    Eastern Caribbean Sea
  32. HYDROPAC 1423/242024-04-30 12:32Z
    A dangerous wreck exists at 23-51.80N 067-20.90E in the Arabian Sea near India; previous warning canceled.
    Arabian Sea · India
  33. HYDROPAC 582/242024-02-19 15:13Z
    A partially submerged wreck is in the Persian Gulf near the UAE at coordinates 25-11.64N 054-10.12E.
    Persian Gulf · U.A.E
  34. HYDROPAC 311/242024-01-25 15:48Z
    A dangerous wreck marked by a buoy is located in the Persian Gulf off Kuwait at 29-05.49N 048-22.09E.
    Persian Gulf · Kuwait
  35. NAVAREA XI 252/232023-07-28 08:00Z
    A large buoy exists in the East China Sea at 31 degrees north, 124 degrees east.
    East China Sea
  36. NAVAREA XI 153/202020-04-06 03:00Z
    A yellow observation buoy is reported at 19-20.6N 113-45.9E in the northern South China Sea on 04 Apr.
    South China Sea, Northern Part
  37. NAVAREA XI 664/192019-11-21 00:00Z
    An oil rig is reported to exist in the southern South China Sea at 07-42.1N 107-55.8E.
    South China Sea, Southern Part
  38. NAVAREA XI 132/192019-03-07 12:00Z
    An oil rig is reported at 07-47.5N 108-12.0E in the southern South China Sea, and previous warnings are cancelled.
    South China Sea, Southern Part

Archive by year · 1,918 since 1998

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Terms used in wrecks warnings

Dangerous wreck
A sunken vessel close enough to the surface to endanger ships, or wreckage reported in the water.
Shoal / reported depth
Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
Submerged obstruction
Something on or near the seabed that could damage a ship, an anchor or fishing gear — its nature often unknown.
Virtual aid to navigation
A buoy that exists only as an AIS signal — shown on electronic charts and radar, with nothing physically in the water.

Guide: How to read a navigational warning

All warning terms →

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