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 60/152015-01-07 → 2015-01-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. HYDROPAC 38/152015-01-04 → 2015-01-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. NAVAREA XII 493/142014-12-30 → 2015-02-01
    Hazardous operations
    Eastern North Pacific · California
  4. HYDROPAC 3876/142014-12-29 → 2014-12-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 3871/142014-12-28 → 2014-12-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 3860/142014-12-26 → 2015-01-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 dec thru 30 jan 15 in area bound by 27-55-15N…
    Western North Pacific · Nampo Shoto · Gunnery
  7. HYDROPAC 3834/142014-12-23 → 2014-12-28
    Hazardous operations
    Western North Pacific
  8. HYDROPAC 3822/142014-12-22 → 2014-12-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 3821/142014-12-22 → 2014-12-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  10. HYDROPAC 3812/142014-12-21 → 2014-12-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 3811/142014-12-21 → 2014-12-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 3787/142014-12-18 → 2014-12-19
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. HYDROPAC 3743/142014-12-14 → 2014-12-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  14. HYDROPAC 3742/142014-12-14 → 2014-12-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. HYDROPAC 3714/142014-12-12 → 2014-12-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. NAVAREA XII 480/142014-12-11 → 2014-12-17
    Hazardous operations
    Eastern North Pacific · California
  17. HYDROPAC 3699/142014-12-11 → 2014-12-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 3683/142014-12-10 → 2014-12-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. NAVAREA XII 475/142014-12-07 → 2014-12-15
    Hazardous operations
    Eastern North Pacific · California
  20. HYDROPAC 3664/142014-12-07 → 2014-12-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  21. HYDROPAC 3635/142014-12-04 → 2014-12-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. NAVAREA XII 465/142014-12-02 → 2014-12-08
    Hazardous operations
    Eastern North Pacific · California
  23. HYDROPAC 3595/142014-12-01 → 2014-12-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  24. NAVAREA XII 460/142014-11-30 → 2014-12-04
    Gunnery exercises 021800Z to 030100Z dec within 12 miles of: a. 58-45.0N 150-50.0W
    Eastern North Pacific · Gulf of Alaska · Gunnery
  25. NAVAREA XII 457/142014-11-29 → 2014-12-04
    Hazardous operations
    Eastern North Pacific · California
  26. HYDROPAC 3529/142014-11-26 → 2014-12-31
    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
  27. HYDROPAC 3498/142014-11-23 → 2014-11-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  28. HYDROPAC 3481/142014-11-21 → 2014-11-23
    Gunnery exercises 0400Z to 0900Z daily 22 and 23 nov in area bound by 04-50N 145-50E, 04-50N 148-35E, 00-00N…
    Western North Pacific · Gunnery
  29. HYDROPAC 3449/142014-11-19 → 2014-11-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. NAVAREA XII 438/142014-11-17 → 2014-11-24
    Hazardous operations
    Eastern North Pacific · California
  31. NAVAREA XII 436/142014-11-16 → 2014-11-19
    Hazardous operations
    Eastern North Pacific · California
  32. HYDROPAC 3408/142014-11-16 → 2014-11-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  33. HYDROPAC 3357/142014-11-12 → 2014-11-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  34. NAVAREA XII 425/142014-11-11 → 2014-11-18
    Hazardous operations
    Eastern North Pacific · California
  35. HYDROPAC 3343/142014-11-11 → 2014-11-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. NAVAREA XII 424/142014-11-09 → 2014-11-25
    Hazardous operations
    Eastern North Pacific · Mexico
  37. HYDROPAC 3294/142014-11-06 → 2014-11-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 3280/142014-11-05 → 2014-11-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. HYDROPAC 3274/142014-11-04 → 2014-11-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 3234/142014-10-31 → 2014-11-09
    Hazardous operations
    Western North Pacific · Nampo Shoto
  41. HYDROPAC 3187/142014-10-27 → 2014-11-30
    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
  42. NAVAREA XII 392/142014-10-27 → 2014-12-01
    Hazardous operations
    Eastern North Pacific · California
  43. NAVAREA XII 385/142014-10-24 → 2014-11-03
    Hazardous operations
    Eastern North Pacific · California
  44. HYDROPAC 3146/142014-10-23 → 2014-10-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. HYDROPAC 3134/142014-10-21 → 2014-10-30
    Hazardous operations
    Western North Pacific · Nampo Shoto
  46. NAVAREA XII 380/142014-10-21 → 2014-10-26
    Hazardous operations
    Eastern North Pacific · California
  47. HYDROPAC 3130/142014-10-21 → 2014-10-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. HYDROPAC 3121/142014-10-20 → 2014-10-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. HYDROPAC 3120/142014-10-20 → 2014-10-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  50. NAVAREA XII 378/142014-10-19 → 2014-10-21
    Hazardous operations
    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.

Military exercises in the North Pacific Ocean — page 57 · seahazards