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. HYDROPAC 814/152015-03-09 → 2015-03-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. NAVAREA XII 88/152015-03-08 → 2015-03-13
    Hazardous operations
    Eastern North Pacific · California
  3. NAVAREA XII 84/152015-03-05 → 2015-03-11
    Hazardous operations
    Eastern North Pacific · California
  4. NAVAREA XII 81/152015-03-02 → 2015-03-05
    Hazardous operations
    Eastern North Pacific · California
  5. HYDROPAC 667/152015-02-27 → 2015-02-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. NAVAREA XII 76/152015-02-27 → 2015-03-09
    Hazardous operations
    Eastern North Pacific · California
  7. HYDROPAC 657/152015-02-26 → 2015-02-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 636/152015-02-24 → 2015-03-31
    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 · Nampo Shoto · Gunnery
  9. HYDROPAC 613/152015-02-22 → 2015-02-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  10. NAVAREA XII 67/152015-02-20 → 2015-03-02
    Hazardous operations
    Eastern North Pacific · California
  11. HYDROPAC 551/152015-02-16 → 2015-02-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 542/152015-02-15 → 2015-02-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. NAVAREA XII 62/152015-02-14 → 2015-02-22
    Hazardous operations
    Eastern North Pacific · California
  14. HYDROPAC 517/152015-02-13 → 2015-02-14
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. HYDROPAC 487/152015-02-11 → 2015-02-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 486/152015-02-11 → 2015-02-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 474/152015-02-10 → 2015-02-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. NAVAREA XII 55/152015-02-09 → 2015-02-12
    Hazardous operations
    Eastern North Pacific
  19. HYDROPAC 455/152015-02-09 → 2015-02-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  20. HYDROPAC 453/152015-02-09 → 2015-02-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  21. NAVAREA XII 54/152015-02-07 → 2015-02-16
    Hazardous operations
    Eastern North Pacific · California
  22. NAVAREA XII 50/152015-02-05 → 2015-02-14
    Hazardous operations
    Eastern North Pacific · California
  23. HYDROPAC 404/152015-02-04 → 2015-02-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  24. HYDROPAC 378/152015-02-02 → 2015-02-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 377/152015-02-02 → 2015-02-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. NAVAREA XII 44/152015-01-31 → 2015-02-06
    Hazardous operations
    Eastern North Pacific · California
  27. NAVAREA XII 43/152015-01-30 → 2015-02-08
    Hazardous operations
    Eastern North Pacific · California
  28. NAVAREA XII 39/152015-01-29 → 2015-03-01
    Hazardous operations
    Eastern North Pacific · California
  29. NAVAREA XII 38/152015-01-28 → 2015-01-31
    Hazardous operations
    Eastern North Pacific · California
  30. HYDROPAC 296/152015-01-27 → 2015-02-28
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jan to 27 feb in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nampo Shoto · Gunnery
  31. NAVAREA XII 35/152015-01-27 → 2015-01-28
    Gunnery exercises 272000Z to 272300Z jan within 10000 yards of 57-07.72N 136-27.28W
    Eastern North Pacific · Gunnery
  32. HYDROPAC 284/152015-01-26 → 2015-01-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  33. NAVAREA XII 31/152015-01-24 → 2015-02-02
    Hazardous operations
    Eastern North Pacific · California
  34. NAVAREA XII 29/152015-01-22 → 2015-01-26
    Hazardous operations
    Eastern North Pacific · California
  35. HYDROPAC 244/152015-01-22 → 2015-01-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. NAVAREA XII 24/152015-01-21 → 2015-01-26
    Hazardous operations
    Eastern North Pacific · California
  37. NAVAREA XII 23/152015-01-21 → 2015-01-27
    Hazardous operations
    Eastern North Pacific · California
  38. HYDROPAC 230/152015-01-21 → 2015-01-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. HYDROPAC 216/152015-01-20 → 2015-01-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 206/152015-01-19 → 2015-01-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  41. HYDROPAC 205/152015-01-19 → 2015-01-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. NAVAREA XII 20/152015-01-16 → 2015-01-21
    Gunnery exercises 211700Z to 212100Z jan within five miles of 57-00N 136-28W
    Eastern North Pacific · Gulf of Alaska · Gunnery
  43. NAVAREA XII 18/152015-01-16 → 2015-01-26
    Hazardous operations
    Eastern North Pacific · California
  44. HYDROPAC 124/152015-01-13 → 2015-01-15
    Hazardous operations
    West North Pacific · Mariana Islands
  45. NAVAREA XII 16/152015-01-13 → 2015-01-15
    Hazardous operations
    Eastern North Pacific · California
  46. HYDROPAC 111/152015-01-12 → 2015-01-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  47. NAVAREA XII 15/152015-01-11 → 2015-01-14
    Hazardous operations
    Eastern North Pacific · California
  48. HYDROPAC 104/152015-01-11 → 2015-01-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. NAVAREA XII 14/152015-01-11 → 2015-01-19
    Hazardous operations
    Eastern North Pacific · California
  50. NAVAREA XII 9/152015-01-07 → 2015-01-13
    Hazardous operations
    Eastern North Pacific · Hawaii

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 56 · seahazards