Survey operations in the North Pacific Ocean

Hydrographic and scientific survey vessels, often towing long arrays.

in force
1
last 12 months
1
vs previous 12 (1)
0%
since 1999
150

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 · 1

  1. HYDROPAC 2124/26in force2026-07-24
    Submersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.
    North Pacific

Longest in force

  1. HYDROPAC 2124/26in force2026-07-24 · 29 d
    Submersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.
    North Pacific

By year

99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26

By month (all years)

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

Other hazards in the North Pacific Ocean

Archive · 149 cancelled

  1. NAVAREA XII 67/122012-03-14 → 2012-03-25
    Oceanographic operations in progress until 24 mar by M/V l'atalante with submersible along trackline between…
    Eastern North Pacific
  2. HYDROPAC 2066/112011-07-20 → 2011-07-30
    Underwater operations by M/V kairei with submersible: a. within 1.5 miles of 41-06.1N 159-57.2E on 25 jul
    Western North Pacific
  3. HYDROPAC 1899/112011-07-01 → 2011-10-02
    Underwater operations in progress until 01 oct in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N…
    Philippine Sea · Mariana Islands
  4. HYDROPAC 850/112011-03-18 → 2011-05-09
    This marad advisory provides guidance to vessels transiting to or from ports in japan or in waters in the…
    Japan-northeast Coast
  5. NAVAREA XII 99/112011-03-18 → 2011-04-30
    This marad advisory provides guidance to vessels transiting to or from ports in japan or in waters in the…
    Japan-northeast Coast
  6. HYDROPAC 687/112011-03-04 → 2011-03-14
    Underwater operations 09 thru 29 mar by M/V kairei towing 6000 meter long cable vicinity of tracklines…
    Western North Pacific · Japan · Nampo Shoto
  7. HYDROPAC 345/112011-01-29 → 2011-02-05
    Underwater operations 03 and 04 feb by M/V kairei with submersible in areas: a. bound by 35-00N 142-20E,…
    Western North Pacific · Japan · Nampo Shoto
  8. HYDROPAC 2619/102010-11-28 → 2010-12-05
    Underwater operations 03 and 04 dec by M/V kairei with submersible: a. in area bound by 35-00N 142-20E,…
    Western North Pacific · Japan
  9. HYDROPAC 2380/102010-11-06 → 2010-11-10
    Underwater operations 11 and 12 nov by M/V kairei with submersible: a. within two miles of 35-00N 139-13E
    Western North Pacific · Japan
  10. HYDROPAC 1143/102010-06-02 → 2010-06-07
    Underwater operations in progress until 06 jun by M/V kairei with submersible: a. within two miles of 35-00N…
    Western North Pacific · Japan · Nampo Shoto
  11. HYDROPAC 1056/102010-05-21 → 2010-06-02
    Underwater operations 25 may thru 04 jun by M/V kairei with submersible: a. within two miles of 35-00N 139-13E
    Western North Pacific · Japan · Nampo Shoto
  12. HYDROPAC 1017/102010-05-16 → 2010-05-31
    Underwater operations 21 thru 30 may by M/V yokosuka with submersible: a. in area between 23-00N 24-00N and…
    North Pacific
  13. NAVAREA XII 189/102010-04-21 → 2010-06-01
    Underwater operations 25 apr thru 03 jun by M/V l'atalante with submersible along tracklines between: a.…
    Eastern North Pacific · Mexico
  14. NAVAREA XII 115/102010-03-15 → 2010-04-18
    Underwater operations 19 mar thru 17 apr by M/V l'atalante with submersible vicinity 16-00N 105-30W
    Eastern North Pacific · Mexico
  15. NAVAREA XII 14/102010-01-06 → 2010-06-26
    Nos chart 500 (int 810) (8TH ed)
    Eastern North Pacific
  16. HYDROPAC 2143/092009-11-19 → 2009-12-12
    Survey operations 24 nov thru 11 dec by M/V kairei towing 6000 meter long cable vicinity of tracklines…
  17. HYDROPAC 1651/092009-09-14 → 2009-09-21
    Underwater operations 18 thru 20 sep by M/V kairei with submersible within 2.5 miles of 41-05.4N 159-57.5E
  18. HYDROPAC 1112/092009-06-15 → 2009-06-16
    Survey operations 19 jun thru 05 jul by M/V kairei towing 6000 meter long cable in area bound by 42-20N…
  19. HYDROPAC 981/092009-05-23 → 2009-06-08
    Underwater operations 27 may thru 07 jun by M/V yokosuka with submersible in areas: a. between 26-30N 30-00N…
  20. HYDROPAC 1258/082008-07-04 → 2008-07-18
    Underwater operations during daylight hours daily 10 thru 17 jul by M/V yokosuka with submersible in area…
  21. HYDROPAC 1172/082008-06-21 → 2008-07-04
    Underwater operations 25 jun thru 03 jul by M/V kairei with submersible within five miles of: a. 26-45N…
  22. HYDROPAC 1775/072007-10-13 → 2007-10-26
    Underwater operations 14 thru 25 oct by M/V yokosuka with submersible in area bound by 40-00N 143-30E,…
  23. HYDROPAC 1371/072007-08-07 → 2007-08-31
    Survey operations 12 thru 30 aug by M/V shoyo towing 3000 meter long cable in area bound by 25-00N 153-00E,…
  24. HYDROPAC 1051/072007-06-14 → 2007-06-16
    Underwater operations in progress until 15 jun by M/V kairei with submersible along trackline between…
  25. HYDROPAC 519/072007-03-21 → 2007-03-29
    Survey operations 26 thru 28 mar by M/V kairei towing 5500 meter long cable along trackline between 26-01.8N…
  26. HYDROPAC 1642/062006-08-25 → 2006-09-04
    Underwater operations 30 aug thru 03 sep by M/V yokosuka and submersible shinkai 6500 in area bound by…
  27. HYDROPAC 1437/062006-07-31 → 2006-08-15
    Survey operations 01 thru 14 aug by M/V takuyo towing 1200 meter long cable in area bound by 34-30N 138-30E,…
  28. HYDROPAC 1432/052005-09-03 → 2005-09-30
    Survey operations 08 thru 29 sep by M/V takuyo in area bound by 39-15N 144-12E, 39-15N 147-45E, 36-48N…
  29. HYDROPAC 1254/052005-08-04 → 2005-08-30
    Survey operations 08 thru 29 aug by M/V takuyo in area bound by 39-15N 144-12E, 39-15N 147-45E, 36-48N…
  30. HYDROARC 4/052005-08-01 → 2007-09-18
    Scientific moorings established: a. A2-05 65-46.78N 168-34.50W
  31. HYDROPAC 1074/052005-07-06 → 2005-07-24
    Underwater research operations by M/V kaiko 7000 and M/V kairei during daylight hours 11 thru 23 jul within…
  32. HYDROPAC 773/052005-05-11 → 2005-05-26
    Underwater operations 14 thru 17 may and 24 and 25 may by M/V yokosuka and submersible shinkai 6500 in area…
  33. HYDROPAC 616/052005-04-13 → 2005-05-11
    Survey operations 18 apr thru 10 may by M/V shoyo and M/V takuyo in area bound by 36-25N 141-10E, 37-00N…
  34. HYDROPAC 1993/042004-12-31 → 2005-01-26
    Survey operations 05 thru 25 jan 05 by M/V kairei towing 1000 meter long cable along trackline: a. joining…
  35. HYDROPAC 987/042004-06-15 → 2004-07-21
    Oceanographic buoy established in 07-39N 136-42E
  36. NAVAREA XII 170/042004-05-18 → 2004-06-17
    Oceanographic operations by M/V l'atalante with submersible: a. 23 may thru 06 jun vicinity 14-00N 130-00W
  37. NAVAREA XII 252/032003-09-16 → 2003-09-22
    Underwater operations 192300Z to 220600Z sep vicinity of trackline between 28-20N 138-42W and 22-11N 155-10W
  38. NAVAREA XII 243/032003-09-09 → 2003-09-10
    Underwater operations 121900Z to 130200Z sep within 40 miles of 28-00N 140-00W
  39. NAVAREA XII 242/032003-09-08 → 2003-09-10
    Underwater operations 092100Z to 100300Z sep within 40 miles of 22-00N 163-30W
  40. NAVAREA XII 232/032003-09-02 → 2003-09-18
    Survey operations by M/V kairei towing 300 meter long cable: a. 07 and 08 sep in area between 30-00N 40-00N…
  41. HYDROPAC 1910/022002-10-12 → 2002-10-25
    Underwater research operations daily 17 thru 24 oct by M/V kairei with submersible within five miles of…
  42. HYDROPAC 1196/022002-06-26 → 2002-07-08
    Underwater operations 01 thru 07 jul during daylight hours by M/V kairei and M/V kaiko within one mile of…
  43. HYDROPAC 1854/012001-11-17 → 2001-11-27
    Underwater research operations during daylight hours 22 thru 26 nov by M/V shinkai 6500 and M/V yokosuka in…
  44. HYDROPAC 1206/012001-07-29 → 2001-08-06
    Underwater operations sunrise to sunset daily 02 thru 05 aug by M/V kairei and M/V kaiko within ten miles of…
  45. HYDROPAC 492/002000-03-27 → 2000-04-05
    Underwater operations sunrise to sunset daily 01 thru 04 apr by M/V kaiko and M/V kairei within five miles…
  46. NAVAREA XII 102/002000-03-25 → 2001-03-23
    Oceanographic buoy established in 42-54.18N 130-54.63W
  47. HYDROPAC 27/002000-01-05 → 2000-01-13
    Survey operations 10 thru 12 jan by M/V shoyo towing 3400 meter long cable vicinity of trackline between…
  48. HYDROPAC 834/991999-08-24 → 1999-09-01
    Survey operations 27 thru 31 aug by M/V syoyo towing 3400 meter long cable vicinity of trackline joining…
  49. HYDROPAC 796/991999-08-14 → 1999-08-24
    Survey operations 19 thru 23 aug by M/V syoyo towing 3400 meter long cable vicinity of trackline joining…

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.

Survey operations in the North Pacific Ocean — page 3 · seahazards