Wrecks & obstructions in the South Atlantic Ocean

Dangerous wrecks, shoals and submerged obstructions.

in force
3
last 12 months
1
vs previous 12 (3)
-67%
since 1999
134

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 3

  1. HYDROLANT 582/26in force2026-03-23
    Foul ground exists in a bounded area off Brazil until December 6, 2027.
    South Atlantic · Brazil
  2. HYDROLANT 1213/25in force2025-07-19
    Depths are less than charted in three areas off Brazil in the South Atlantic.
    South Atlantic · Brazil
  3. HYDROLANT 915/25in force2025-05-31
    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

Longest in force

  1. HYDROLANT 915/25in force2025-05-31 · 448 d
    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
  2. HYDROLANT 1213/25in force2025-07-19 · 399 d
    Depths are less than charted in three areas off Brazil in the South Atlantic.
    South Atlantic · Brazil
  3. HYDROLANT 582/26in force2026-03-23 · 152 d
    Foul ground exists in a bounded area off Brazil until December 6, 2027.
    South Atlantic · Brazil

By year

99
00
01
03
04
05
07
08
09
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the South Atlantic Ocean

Archive · 131 cancelled

  1. HYDROLANT 2989/122012-12-19 → 2012-12-22
    Cancel HYDROLANT 1835/12
    Eastern South Atlantic · Angola
  2. HYDROLANT 2565/122012-11-01 → 2013-10-19
    Brazil-east Coast
  3. HYDROLANT 1956/122012-08-25 → 2013-12-28
    Brazil-north Coast
  4. HYDROLANT 1835/122012-08-10 → 2012-12-19
    Angola
    Eastern South Atlantic
  5. HYDROLANT 1874/102010-10-02 → 2010-10-16
    Nga chart 24270 (3RD ed)
    Brazil-north Coast
  6. HYDROLANT 845/102010-05-12 → 2013-11-06
    Nga chart 24140 (18TH ed)
    Brazil-south Coast
  7. HYDROLANT 2219/092009-11-15 → 2009-11-16
    Nga chart 24008 (42ND ed)
  8. HYDROLANT 985/092009-05-29 → 2009-06-20
    Nga chart 24222 (3RD ed)
  9. HYDROLANT 602/092009-03-28 → 2009-04-11
    Nga chart 24130 (14TH ed)
  10. HYDROLANT 379/092009-02-24 → 2009-03-28
    Nga chart 24130 (14TH ed)
  11. HYDROLANT 327/092009-02-16 → 2009-04-11
    Nga chart 24130 (14TH ed)
  12. HYDROLANT 2032/082008-11-24 → 2009-03-07
    Nga chart 24141 (4TH ed)
  13. HYDROLANT 1916/082008-11-07 → 2009-01-10
    Nga chart 24190 (15TH ed)
  14. HYDROLANT 1690/082008-10-11 → 2009-03-07
    Nga chart 24240 (5TH ed)
  15. HYDROLANT 807/082008-05-12 → 2008-10-15
    Nga chart 57262 (4TH ed)
  16. HYDROLANT 1970/072007-11-27 → 2008-05-10
    Nga chart 24004 (36TH ed)
  17. HYDROLANT 1429/052005-08-07 → 2005-08-22
    Dangerous wreck in 15-34.01S 038-51.30W
  18. HYDROLANT 1281/052005-07-12 → 2005-12-08
    Dangerous wreck in 04-42-00S 036-43-16W
  19. HYDROLANT 477/052005-03-13 → 2008-02-09
    22 meter depth reported in 35-53.4S 054-34.6W
  20. HYDROLANT 754/042004-05-03 → 2004-06-10
    Dangerous wreck, least depth 9 meters, in 08-47.01S 013-15.27E
  21. HYDROLANT 367/042004-03-03 → 2004-03-06
    Dangerous wreck, least depth 9 meters, in 08-47.01S 013-15.27E
  22. HYDROLANT 2384/032003-12-24 → 2004-06-16
    Dangerous wreck in 36-15.68S 056-01.46W
  23. HYDROLANT 2257/032003-12-03 → 2003-12-19
    Dangerous wreck vicinity 36-15S 056-02W
  24. HYDROLANT 1493/012001-05-24 → 2001-06-16
    Foul ground, 18.3 meters, within 0.5 miles of 34-05.50S 053-23.35W
  25. HYDROLANT 1282/012001-04-30 → 2001-06-22
    Foul ground, 13 meters, in 35-00.89S 054-50.48W
  26. HYDROLANT 1099/012001-04-08 → 2001-05-24
    Foul ground, 18.3 meters, within one mile of 34-05.50S 053-23.35W
  27. HYDROLANT 966/012001-03-24 → 2001-03-26
    Dangerous wreck reported in 51-49.7S 065-22.9W
  28. HYDROLANT 872/012001-03-16 → 2001-04-08
    Foul ground, 12.2 meters, within one mile of 34-05.6S 053-23.4W
  29. HYDROLANT 3010/002000-08-29 → 2000-11-22
    Dangerous wreck, marked by red buoy, in 34-34-25S 053-43-52W
  30. HYDROLANT 2034/991999-09-23 → 1999-10-14
    Unconfirmed shoal depths reported as follows: a. 30 meters in 34-13.3S 017-29.4E
  31. HYDROLANT 1259/991999-06-17 → 1999-09-03
    Dangerous wreck in 36-05.6S 055-05.7W

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Wrecks & obstructions in the South Atlantic Ocean — page 3 · seahazards