Military exercises in the North Pacific Ocean

Gunnery, firing and naval exercise areas.

in force
6
last 12 months
20
vs previous 12 (30)
-33%
since 1993
4,626

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 · 6

  1. NAVAREA XI 380/26in force2026-08-22
    Hazardous operations are taking place in the Marianas area from 27 August 0200Z to 0600Z, with cancellation at 0700Z.
    North Pacific, Marianas
  2. HYDROPAC 2152/26in force2026-07-27
    Gunnery exercises daily 2300-0900 Zulu, July 31 to August 30, North Pacific area bounded by 28-15N 146-30E, 25-25N 147-38E, 25-00N 145-36E, 27-55N 145-58E.
    North Pacific
  3. NAVAREA XI 342/26in force2026-07-27
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
    North Pacific, Nanpo Shoto · Gunnery
  4. NAVAREA XII 512/26in force2026-07-23
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
    North Pacific · California
  5. NAVAREA XII 510/26in force2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
    North Pacific · California
  6. NAVAREA XII 511/26in force2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
    North Pacific · California

Longest in force

  1. NAVAREA XII 511/26in force2026-07-23 · 32 d
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
    North Pacific · California
  2. NAVAREA XII 510/26in force2026-07-23 · 32 d
    Hazardous operations are underway off the coast of California from August 1 to September 1.
    North Pacific · California
  3. NAVAREA XII 512/26in force2026-07-23 · 32 d
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
    North Pacific · California
  4. NAVAREA XI 342/26in force2026-07-27 · 28 d
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
    North Pacific, Nanpo Shoto · Gunnery
  5. HYDROPAC 2152/26in force2026-07-27 · 28 d
    Gunnery exercises daily 2300-0900 Zulu, July 31 to August 30, North Pacific area bounded by 28-15N 146-30E, 25-25N 147-38E, 25-00N 145-36E, 27-55N 145-58E.
    North Pacific

By year

93
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
25
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 · 4,620 cancelled

  1. NAVAREA XII 118/132013-05-12 → 2013-06-06
    Hazardous operations
    North Pacific · Hawaii
  2. HYDROPAC 1348/132013-05-10 → 2013-05-17
    Gunnery exercises 2200Z to 0930Z commencing daily 14 and 15 may, alternate 162200Z to 170930Z may within 25…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  3. HYDROPAC 1287/132013-05-06 → 2013-05-06
    Hazardous operations 2200Z to 0600Z commencing daily 06 and 07 may in area bound by 13-10N 144-30E, 13-10N…
    North Pacific · Mariana Islands. · Hazardous Operation
  4. HYDROPAC 1284/132013-05-06 → 2013-05-08
    Hazardous operations
    North Pacific · Mariana Islands
  5. HYDROPAC 1283/132013-05-06 → 2013-05-09
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 1264/132013-05-04 → 2013-05-08
    Gunnery exercises 090300Z to 090900Z may within ten miles of 29-55.0N 141-59.5E
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  7. HYDROPAC 1162/132013-04-25 → 2013-05-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  8. HYDROPAC 1125/132013-04-22 → 2013-04-23
    Hazardous operations
    North Pacific · Mariana Islands
  9. HYDROPAC 1006/132013-04-11 → 2013-04-12
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 1002/132013-04-11 → 2013-04-12
    Hazardous operations
    North Pacific · Mariana Islands
  11. NAVAREA XII 80/132013-03-26 → 2013-03-28
    Gunnery and pyrotechnic exercises 272000Z to 272359Z mar within seven miles of 57-00N 136-20W
    Alaska-southeast Coast · Gulf of Alaska · Gunnery
  12. HYDROPAC 824/132013-03-25 → 2013-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  13. HYDROPAC 809/132013-03-24 → 2013-03-25
    Hazardous operations
    North Pacific · Mariana Islands
  14. NAVAREA XII 78/132013-03-22 → 2013-03-23
    Hazardous operations
    Eastern North Pacific · California
  15. NAVAREA XII 77/132013-03-22 → 2013-03-28
    Hazardous operations
    Eastern North Pacific · California
  16. NAVAREA XII 76/132013-03-22 → 2013-03-26
    Hazardous operations
    Eastern North Pacific · California
  17. NAVAREA XII 70/132013-03-20 → 2013-03-22
    Hazardous operations
    Eastern North Pacific
  18. NAVAREA XII 69/132013-03-18 → 2013-03-23
    Hazardous operations
    Eastern North Pacific · California
  19. HYDROPAC 752/132013-03-17 → 2013-03-22
    Hazardous operations
    North Pacific · Mariana Islands
  20. NAVAREA XII 67/132013-03-15 → 2013-03-19
    Hazardous operations
    Eastern North Pacific · California
  21. HYDROPAC 720/132013-03-14 → 2013-03-16
    Hazardous operations
    North Pacific · Mariana Islands
  22. HYDROPAC 680/132013-03-10 → 2013-03-12
    Hazardous operations
    North Pacific · Mariana Islands
  23. NAVAREA XII 61/132013-03-06 → 2013-03-07
    Gunnery exercises 061700Z to 070100Z mar within five miles of 57-00N 136-27W
    Gulf of Alaska · Gunnery
  24. HYDROPAC 632/132013-03-05 → 2013-03-08
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 618/132013-03-03 → 2013-03-05
    Hazardous operations
    North Pacific · Mariana Islands
  26. NAVAREA XII 58/132013-03-03 → 2013-03-07
    Hazardous operations
    Gulf of Alaska
  27. HYDROPAC 572/132013-02-26 → 2013-02-27
    Hazardous operations
    North Pacific · Mariana Islands
  28. HYDROPAC 571/132013-02-26 → 2013-03-01
    Hazardous operations
    North Pacific · Mariana Islands
  29. HYDROPAC 559/132013-02-25 → 2013-02-27
    Hazardous operations
    North Pacific · Mariana Islands
  30. HYDROPAC 550/132013-02-24 → 2013-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 28 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  31. HYDROPAC 547/132013-02-24 → 2013-02-26
    Hazardous operations
    North Pacific · Mariana Islands
  32. HYDROPAC 520/132013-02-21 → 2013-02-22
    Hazardous operations
    North Pacific · Mariana Islands
  33. HYDROPAC 482/132013-02-18 → 2013-02-22
    Hazardous operations
    North Pacific · Mariana Islands
  34. HYDROPAC 359/132013-02-04 → 2013-02-06
    Hazardous operations
    North Pacific · Mariana Islands
  35. HYDROPAC 355/132013-02-04 → 2013-02-05
    Hazardous operations
    North Pacific · Mariana Islands
  36. HYDROPAC 348/132013-02-03 → 2013-02-08
    Hazardous operations
    North Pacific · Mariana Islands
  37. HYDROPAC 318/132013-01-31 → 2013-02-01
    Hazardous operations
    North Pacific · Mariana Islands
  38. HYDROPAC 312/132013-01-30 → 2013-01-31
    Gunnery exercises 310100Z to 310400Z jan in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    North Pacific · Mariana Islands · Gunnery
  39. HYDROPAC 288/132013-01-28 → 2013-01-30
    Hazardous operations
    North Pacific · Mariana Islands
  40. HYDROPAC 273/132013-01-27 → 2013-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan thru 27 feb in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  41. NAVAREA XII 17/132013-01-22 → 2013-01-26
    Hazardous operations
    Eastern North Pacific
  42. HYDROPAC 67/132013-01-08 → 2013-01-12
    Hazardous operations
    North Pacific · Mariana Islands
  43. HYDROPAC 43/132013-01-06 → 2013-01-08
    Hazardous operations
    North Pacific · Mariana Islands
  44. HYDROPAC 3710/122012-12-27 → 2013-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 13 in area bound by 27-55-15N…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  45. HYDROPAC 3631/122012-12-20 → 2012-12-21
    Hazardous operations
    North Pacific · Mariana Islands
  46. HYDROPAC 3596/122012-12-17 → 2012-12-20
    Hazardous operations
    North Pacific · Mariana Islands
  47. HYDROPAC 3595/122012-12-17 → 2012-12-18
    Hazardous operations
    North Pacific · Mariana Islands
  48. HYDROPAC 3590/122012-12-16 → 2012-12-17
    Hazardous operations
    North Pacific · Mariana Islands
  49. HYDROPAC 3589/122012-12-16 → 2012-12-17
    Hazardous operations
    North Pacific · Mariana Islands
  50. HYDROPAC 3573/122012-12-15 → 2012-12-16
    Hazardous operations
    North Pacific · Mariana Islands

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.

Military exercises in the North Pacific Ocean — page 63 · seahazards