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

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05
06
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10
11
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17
18
19
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26

By month (all years)

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Other hazards in the North Pacific Ocean

Archive · 149 cancelled

  1. HYDROPAC 3170/242024-10-01 → 2024-11-22
    Survey operations 02 thru 09 oct by M/V yokosuka with submersible shinkai 6500 in areas within two miles of:…
    Philippine Sea · Western North Pacific
  2. HYDROPAC 1129/242024-04-08 → 2024-04-19
    Survey operations 09 thru 18 apr by M/V kairi towing 5100 meter long cable in area bound by 24-03.30N…
    Western North Pacific
  3. HYDROPAC 1090/242024-04-05 → 2024-04-17
    Survey operations 06 thru 16 apr by M/V hakuho maru towing 2000 meter cable in areas bound by: a. 30-00.00N…
    North Pacific · Western North Pacific
  4. HYDROPAC 849/242024-03-13 → 2024-03-26
    Survey operations 14 thru 25 mar by submersible shinkai 6500 and M/V yokosuka in areas bound by: a.…
    Western North Pacific
  5. HYDROPAC 746/242024-03-06 → 2024-04-07
    Survey operations in progress until 06 apr in area bound by 07-19.80N 134-27.44E, 07-19.79N 134-27.51E,…
    Western North Pacific · Palau
  6. HYDROPAC 692/242024-02-29 → 2024-03-08
    Underwater operations 01 thru 07 mar by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
    Philippine Sea · Western North Pacific · Japan
  7. NAVAREA XII 81/242024-02-16 → 2024-03-18
    Underwater operations 180900Z feb to 180900Z mar by M/V atlantis with submersible alvin in area within 100…
    Eastern North Pacific
  8. NAVAREA XII 11/242024-01-12 → 2024-02-09
    Underwater operations 150900Z jan thru 090900Z feb by r/v atlantis and submersible alvin in area within 100…
    Eastern North Pacific
  9. HYDROPAC 3327/232023-10-19 → 2023-11-07
    Underwater operations 20 oct thru 06 nov by shinkai 6500, mother ship and yokosuka in areas within three…
    Philippine Sea · Western North Pacific · Japan
  10. NAVAREA XII 539/232023-08-15 → 2023-08-25
    Underwater operations in progress until further notice by M/V atlantis in area within 70 miles of 46-14.40N…
    Eastern North Pacific · Oregon
  11. NAVAREA XII 531/232023-08-14 → 2023-08-15
    Underwater operations in progress until further notice by M/V atlantis in area within 70 miles of 46-13.32N…
    Eastern North Pacific · Oregon
  12. NAVAREA XII 503/232023-08-07 → 2023-08-14
    Underwater operations by M/V atlantis 0700Z to 2359Z daily 12 thru 20 aug in area within 60 miles of…
    Eastern North Pacific · Oregon
  13. HYDROPAC 2467/232023-07-28 → 2023-08-12
    Underwater operations 29 jul thru 11 aug by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
    Western North Pacific · Micronesia, Federated States of
  14. NAVAREA XII 471/232023-07-27 → 2023-07-29
    California 1. underwater operation 280700Z to 282359Z jul by M/V atlantis in area within two miles of…
    Eastern North Pacific
  15. NAVAREA XII 468/232023-07-26 → 2023-07-29
    Underwater operations by M/V atlantis and submersible alvin: a. 270700Z to 280001Z jul in area within two…
    Eastern North Pacific · California
  16. NAVAREA XII 434/232023-07-11 → 2023-07-29
    Underwater operations by r/v atlantis and dsv alvin 0700Z to 2359Z daily: a. 16 jul in area within 2 miles…
    Eastern North Pacific · California
  17. NAVAREA XII 367/232023-06-19 → 2023-07-12
    Underwater operations 240900Z jun to 120900Z jul by M/V atlantis with submersible alvin in area bound by…
    Eastern North Pacific · California
  18. HYDROPAC 1721/232023-05-23 → 2023-06-10
    Underwater operations 24 may thru 09 jun by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
    Philippine Sea · Western North Pacific · Japan
  19. NAVAREA XII 3/232023-01-03 → 2023-01-31
    Underwater operations 080900Z to 310900Z jan by M/V atlantis with submersible alvin in area within 50 miles…
    Eastern North Pacific
  20. NAVAREA XII 942/222022-12-05 → 2022-12-31
    Underwater operations in progress until 310900Z dec by M/V atlantis with submersible alvin in area within…
    Eastern North Pacific
  21. NAVAREA XII 933/222022-12-03 → 2022-12-09
    Underwater operations 081400Z to 090200Z dec by M/V rebekah and usv sea hunter in areas bound by: a.…
    Eastern North Pacific · California
  22. HYDROPAC 3313/222022-11-21 → 2022-11-22
    Underwater operations 22 thru 26 nov, alternate 27 nov thru 01 dec by M/V ocean guardian in area bound by…
    Western North Pacific · Philippine Sea
  23. HYDROPAC 3304/222022-11-20 → 2022-11-28
    Survey operations in progress until 27 nov by M/V kaimei, towing 12000 meter long cable in area bound by…
    Western North Pacific · Philippine Sea · Japan
  24. NAVAREA XII 828/222022-11-02 → 2022-11-21
    Underwater operations 051500Z thru 210001Z nov by M/V sally ride in area bound by 29-50.76N 123-35.22W,…
    Eastern North Pacific · California
  25. HYDROPAC 2986/222022-10-25 → 2022-11-03
    Survey operations in progress until 030800Z nov by M/V fugro supporter in: a. 13-44.66N 144-40.18E
    Philippine Sea · Western North Pacific · Guam
  26. HYDROPAC 2930/222022-10-18 → 2022-11-06
    Underwater operations 19 oct thru 05 nov by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
    Philippine Sea · Western North Pacific · Japan
  27. NAVAREA XII 552/222022-08-09 → 2022-08-30
    Underwater operations 141500Z to 292300Z aug by r/v bold horizon in area bound by 33-23.30N 124-19.40W,…
    Eastern North Pacific · California
  28. HYDROPAC 2008/222022-07-23 → 2022-07-31
    Underwater operations 24 thru 30 jul by M/V kaimei with submersible in areas bound by: a. 22-40.00N…
    Western North Pacific
  29. HYDROPAC 1424/222022-05-22 → 2022-06-09
    Underwater operations 23 may thru 08 jun by M/V yokosuka with submersible shinkai 6500 in areas bound by a.…
    Philippine Sea · Western North Pacific · Japan
  30. HYDROPAC 1071/222022-04-19 → 2022-05-06
    Underwater operations 24 apr thru 05 may by M/V yokosuka with submersible shinkai 6500 in areas bound by: a.…
    Western North Pacific
  31. NAVAREA XII 34/222022-01-24 → 2022-01-30
    Underwater operations 281000Z to 300959Z jan by M/V kahana II in area bound by 21-08N 158-40W, 21-08N…
    Eastern North Pacific · Hawaii
  32. NAVAREA XII 620/212021-10-30 → 2021-11-05
    Survey operations in progress until 151600Z nov by M/V sally ride towing equipment along trackline joining…
    Eastern North Pacific · California
  33. HYDROPAC 2769/212021-09-30 → 2021-10-17
    Underwater operations 01 thru 16 oct by M/V yokosuka with submersible shinkai 500 in areas bound by: a.…
    Western North Pacific · Philippine Sea · Japan
  34. NAVAREA XII 331/212021-07-17 → 2021-07-18
    Underwater operations 170500Z jul until further notice by c/s ile de sein in 33-31.9N 118-21.0W
    Eastern North Pacific · California
  35. NAVAREA XII 328/212021-07-16 → 2021-07-29
    Underwater operations 19 thru 28 jul by M/V dino choeust with submersible in area bound by 38-30N 124-30W,…
    Eastern North Pacific · California
  36. NAVAREA XII 315/212021-07-11 → 2021-07-31
    Survey operations 160800Z thru 311600Z jul by M/V sally ride towing equipment along trackline joining…
    Eastern North Pacific · California
  37. HYDROPAC 1401/212021-05-11 → 2021-05-29
    Underwater operations 12 thru 28 may by submersible shinkai 6500 and M/V yokosuka in areas bound by: a.…
    Western North Pacific · Philippine Sea
  38. HYDROPAC 1325/212021-05-01 → 2021-05-07
    Underwater operations 02 thru 06 may by submersible shinkai 6500 and M/V yokosuka in area bound by 36-00N…
    Western North Pacific
  39. NAVAREA XII 155/212021-04-09 → 2021-04-30
    Underwater operations in progress until 29 apr by M/V galatea, M/V xpress and M/V prada along trackline…
    Gulf of Panama · Panama
  40. NAVAREA XII 134/212021-03-28 → 2021-04-09
    Underwater operations in progress until 08 apr by M/V galatea, M/V xpress and M/V prada along trackline…
    Gulf of Panama · Panama
  41. HYDROPAC 727/212021-03-05 → 2021-03-13
    Underwater operations 06 thru 12 mar by M/V shinkai 6500 and M/V yokosuka in area bound by 28-15N 142-00E,…
    Western North Pacific · Philippine Sea · Japan
  42. HYDROPAC 3716/202020-12-16 → 2020-12-18
    Survey operations 162300Z to 181500Z dec by M/V kairei towing 1300 meter long cables in area bound by 28-05N…
    Western North Pacific · Japan
  43. HYDROPAC 3201/202020-10-31 → 2020-11-13
    Underwater operations 03 thru 12 nov by M/V koyo maru in area bound by 19-00N 152-30E, 24-30N 152-30E,…
    Western North Pacific
  44. NAVAREA XII 455/202020-10-11 → 2020-10-26
    Survey operations 110800Z to 261600Z oct by M/V sally ride towing equipment along trackline joining 32-57.4N…
    Eastern North Pacific · California
  45. HYDROPAC 2802/202020-09-26 → 2020-10-03
    Survey operations 29 sep thru 02 oct by M/V mirai along trackline joining 45-00N 160-00E, 46-00N 160-00E,…
    North Pacific
  46. NAVAREA XII 300/202020-07-11 → 2020-07-28
    Survey operations 130800Z thru 281600Z jul by M/V sally ride towing equipment along trackline joining…
    Eastern North Pacific · California
  47. HYDROPAC 1780/202020-06-16 → 2020-06-30
    Underwater operations in progress 161400Z to 301400Z jun notice by M/V pegas in area bound by 46-00N…
    Western North Pacific · Sea of Okhotsk · Kuril Islands
  48. HYDROPAC 1724/202020-06-10 → 2020-06-15
    Survey operations 11 thru 14 jun by M/V kaimei towing 5550 meter long cable in area bound by 30-00N 141-00E,…
    Western North Pacific · Philippine Sea · Japan
  49. NAVAREA XII 155/202020-04-11 → 2020-04-13
    Underwater operations 12 apr thru 14 apr by M/V dino chouest with submersible in area bound by 34-00N…
    Eastern North Pacific · California
  50. NAVAREA XII 148/202020-04-05 → 2020-04-12
    Underwater operations 05 apr thru 12 apr by M/V dino choeust with submersible in area bound by 38-00N…
    Eastern North Pacific · California

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 · seahazards