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 52/142014-01-06 → 2014-01-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. HYDROPAC 46/142014-01-05 → 2014-01-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. HYDROPAC 4023/132013-12-27 → 2014-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 14 in area bound by 27-55-15N…
    Western North Pacific · Nampo Shoto · Gunnery
  4. HYDROPAC 3921/132013-12-17 → 2013-12-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 3869/132013-12-12 → 2013-12-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 3829/132013-12-08 → 2013-12-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. HYDROPAC 3828/132013-12-08 → 2013-12-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 3798/132013-12-04 → 2013-12-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. NAVAREA XII 303/132013-12-02 → 2013-12-04
    Gunnery exercises 051800Z to 060100Z dec within 12 miles of: a. 58-45.0N 150-50.0W
    Eastern North Pacific · Gulf of Alaska · Gunnery
  10. HYDROPAC 3765/132013-12-02 → 2013-12-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 3764/132013-12-02 → 2013-12-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 3703/132013-11-27 → 2013-12-31
    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 · Nampo Shoto · Gunnery
  13. HYDROPAC 3658/132013-11-26 → 2013-12-31
    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 · Nampo Shoto · Gunnery
  14. HYDROPAC 3647/132013-11-25 → 2013-11-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. NAVAREA XII 296/132013-11-22 → 2013-12-02
    Hazardous operations
    Eastern North Pacific · California
  16. HYDROPAC 3615/132013-11-21 → 2013-11-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 3596/132013-11-20 → 2013-11-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 3590/132013-11-19 → 2013-11-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. HYDROPAC 3528/132013-11-14 → 2013-11-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  20. HYDROPAC 3512/132013-11-13 → 2013-11-14
    Hazardous operations
    Western North Pacific · Mariana Islands
  21. HYDROPAC 3428/132013-11-05 → 2013-11-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. HYDROPAC 3425/132013-11-04 → 2013-11-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. HYDROPAC 3418/132013-11-03 → 2013-11-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  24. HYDROPAC 3376/132013-10-30 → 2013-10-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. NAVAREA XII 279/132013-10-30 → 2013-11-02
    Gunnery exercises 021900Z to 022100Z nov within five miles of 57-57N 137-17W
    Gulf of Alaska · Gunnery
  26. HYDROPAC 3361/132013-10-29 → 2013-10-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. HYDROPAC 3360/132013-10-29 → 2013-10-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  28. HYDROPAC 3351/132013-10-28 → 2013-10-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  29. HYDROPAC 3336/132013-10-27 → 2013-11-30
    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 · Nampo Shoto · Gunnery
  30. HYDROPAC 3333/132013-10-27 → 2013-10-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  31. HYDROPAC 3306/132013-10-24 → 2013-10-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  32. NAVAREA XII 272/132013-10-22 → 2013-10-23
    Hazardous operations
    Eastern North Pacific · California
  33. HYDROPAC 3252/132013-10-21 → 2013-10-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  34. NAVAREA XII 265/132013-10-17 → 2013-10-18
    Gunnery exercises 181800Z to 182100Z oct within 11000 yards of 57-55N 137-20W
    Gulf of Alaska · Gunnery
  35. HYDROPAC 3161/132013-10-15 → 2013-10-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. NAVAREA XII 258/132013-10-10 → 2013-10-11
    Hazardous operations
    North Pacific · Hawaii
  37. HYDROPAC 3079/132013-10-08 → 2013-10-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 2945/132013-09-26 → 2013-10-31
    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 · Nampo Shoto · Gunnery
  39. HYDROPAC 2940/132013-09-26 → 2013-09-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. NAVAREA XII 245/132013-09-25 → 2013-09-29
    Hazardous operations
    Eastern North Pacific
  41. HYDROPAC 2925/132013-09-25 → 2013-09-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. HYDROPAC 2914/132013-09-24 → 2013-09-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  43. NAVAREA XII 243/132013-09-24 → 2013-09-30
    Hazardous operations
    Eastern North Pacific
  44. HYDROPAC 2901/132013-09-23 → 2013-09-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. HYDROPAC 2900/132013-09-23 → 2013-09-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. HYDROPAC 2895/132013-09-22 → 2013-09-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  47. HYDROPAC 2858/132013-09-19 → 2013-09-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. HYDROPAC 2841/132013-09-18 → 2013-09-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. HYDROPAC 2840/132013-09-18 → 2013-09-19
    Hazardous operations
    North Pacific · Mariana Islands
  50. HYDROPAC 2829/132013-09-17 → 2013-09-18
    Hazardous operations
    Western 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 61 · seahazards