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 907/112011-03-22 → 2011-03-25
    Hazardous operations
    North Pacific · Mariana Islands
  2. HYDROPAC 906/112011-03-22 → 2011-03-25
    Gunnery exercises 2200Z to 0800Z commencing daily 22 thru 24 mar in area bound by 13-10N 144-43E, 13-10N…
    North Pacific · Mariana Islands · Gunnery
  3. NAVAREA XII 106/112011-03-19 → 2011-03-22
    Hazardous operations
    Eastern North Pacific · Mexico-south Coast
  4. NAVAREA XII 96/112011-03-17 → 2011-03-17
    Gunnery exercises 171100Z to 171500Z mar within five miles of 57-00N 136-25W
    Gulf of Alaska · Gunnery
  5. HYDROPAC 779/112011-03-13 → 2011-03-16
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 712/112011-03-06 → 2011-03-09
    Hazardous operations
    North Pacific · Mariana Islands
  7. HYDROPAC 668/112011-03-02 → 2011-03-04
    Hazardous operations
    North Pacific · Mariana Islands
  8. HYDROPAC 644/112011-02-28 → 2011-03-04
    Hazardous operations
    North Pacific · Mariana Islands
  9. HYDROPAC 638/112011-02-27 → 2011-02-28
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 598/112011-02-24 → 2011-03-18
    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 · Gunnery
  11. HYDROPAC 555/112011-02-20 → 2011-02-25
    Hazardous operations
    North Pacific · Mariana Islands
  12. HYDROPAC 522/112011-02-16 → 2011-02-17
    Hazardous operations
    North Pacific · Mariana Islands
  13. HYDROPAC 492/112011-02-13 → 2011-02-15
    Hazardous operations
    North Pacific · Mariana Islands
  14. HYDROPAC 414/112011-02-04 → 2011-02-10
    Hazardous operations
    Western North Pacific · Japan · Nampo Shoto
  15. HYDROPAC 374/112011-01-31 → 2011-02-01
    Hazardous operations
    North Pacific · Mariana Islands
  16. HYDROPAC 368/112011-01-31 → 2011-02-02
    Hazardous operations
    North Pacific · Mariana Islands
  17. HYDROPAC 366/112011-01-31 → 2011-02-04
    Hazardous operations
    North Pacific · Mariana Islands
  18. HYDROPAC 358/112011-01-30 → 2011-01-30
    Hazardous operations
    North Pacific · Mariana Islands
  19. HYDROPAC 334/112011-01-27 → 2011-01-28
    Hazardous operations
    North Pacific · Mariana Islands
  20. HYDROPAC 325/112011-01-27 → 2011-02-28
    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 · Gunnery
  21. HYDROPAC 289/112011-01-24 → 2011-01-25
    Hazardous operations
    North Pacific · Mariana Islands
  22. HYDROPAC 214/112011-01-18 → 2011-01-20
    Hazardous operations
    North Pacific · Mariana Islands
  23. HYDROPAC 204/112011-01-17 → 2011-01-21
    Hazardous operations
    North Pacific · Mariana Islands
  24. HYDROPAC 182/112011-01-16 → 2011-01-17
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 152/112011-01-13 → 2011-01-14
    Hazardous operations
    North Pacific · Mariana Islands
  26. HYDROPAC 93/112011-01-10 → 2011-01-11
    Hazardous operations
    North Pacific · Mariana Islands
  27. HYDROPAC 92/112011-01-10 → 2011-01-10
    Hazardous operations
    North Pacific · Mariana Islands
  28. HYDROPAC 2932/102010-12-27 → 2011-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  29. HYDROPAC 2852/102010-12-21 → 2010-12-22
    Hazardous operations
    North Pacific · Mariana Islands
  30. HYDROPAC 2849/102010-12-20 → 2010-12-20
    Hazardous operations
    North Pacific · Mariana Islands
  31. HYDROPAC 2835/102010-12-19 → 2010-12-20
    Hazardous operations
    North Pacific · Mariana Islands
  32. HYDROPAC 2773/102010-12-14 → 2010-12-17
    Hazardous operations
    North Pacific
  33. HYDROPAC 2764/102010-12-13 → 2010-12-14
    Hazardous operations
    North Pacific
  34. NAVAREA XII 477/102010-12-09 → 2010-12-15
    Hazardous operations
    Eastern North Pacific
  35. HYDROPAC 2583/102010-11-26 → 2010-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  36. HYDROPAC 2467/102010-11-16 → 2010-11-18
    Hazardous operations
    North Pacific · Mariana Islands
  37. NAVAREA XII 449/102010-11-03 → 2010-11-06
    Hazardous operations
    Eastern North Pacific
  38. NAVAREA XII 447/102010-11-03 → 2010-11-03
    Hazardous operations
    Eastern North Pacific
  39. HYDROPAC 2293/102010-10-29 → 2010-11-13
    Gunnery exercises 2000Z to 1100Z commencing daily 02 and 03 nov, alternate 2000Z to 1100Z commencing daily…
    Western North Pacific · Nampo Shoto · Gunnery
  40. NAVAREA XII 438/102010-10-28 → 2010-11-03
    Hazardous operations
    Eastern North Pacific
  41. HYDROPAC 2249/102010-10-27 → 2010-11-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 oct thru 29 nov in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  42. NAVAREA XII 435/102010-10-26 → 2010-10-28
    Hazardous operations
    Eastern North Pacific
  43. NAVAREA XII 411/102010-10-06 → 2010-10-22
    Hazardous operations
    Eastern North Pacific · Mexico-southwest Coast
  44. HYDROPAC 1983/102010-09-27 → 2010-09-28
    Hazardous operations
    North Pacific · Mariana Islands
  45. HYDROPAC 1969/102010-09-26 → 2010-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  46. HYDROPAC 1923/102010-09-21 → 2010-09-27
    Hazardous operations
    North Pacific · Mariana Islands
  47. NAVAREA XII 386/102010-09-16 → 2010-09-21
    Hazardous operations
    Eastern North Pacific
  48. HYDROPAC 1865/102010-09-14 → 2010-09-15
    Hazardous operations 1. hazardous operations 142300Z to 150200Z sep in area bound by 13-10N 144-43E, 13-10N…
    North Pacific · Mariana Islands
  49. HYDROPAC 1793/102010-09-05 → 2010-09-10
    Hazardous operations
    North Pacific · Mariana Islands
  50. HYDROPAC 1737/102010-08-27 → 2010-09-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 aug thru 29 sep in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery

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 69 · seahazards