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 2882/152015-09-01 → 2015-09-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  2. HYDROPAC 2877/152015-08-31 → 2015-09-01
    Hazardous operations
    Western North Pacific · Mariana Islands
  3. HYDROPAC 2873/152015-08-30 → 2015-08-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  4. HYDROPAC 2872/152015-08-30 → 2015-08-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 2862/152015-08-29 → 2015-08-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 2861/152015-08-29 → 2015-08-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. NAVAREA XII 290/152015-08-27 → 2015-09-01
    Hazardous operations
    Eastern North Pacific · Mexico
  8. HYDROPAC 2832/152015-08-27 → 2015-09-30
    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 · Nanpo Shoto · Gunnery
  9. HYDROPAC 2825/152015-08-27 → 2015-08-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  10. HYDROPAC 2824/152015-08-27 → 2015-08-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. HYDROPAC 2788/152015-08-22 → 2015-08-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. HYDROPAC 2775/152015-08-21 → 2015-08-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. HYDROPAC 2734/152015-08-18 → 2015-08-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  14. HYDROPAC 2733/152015-08-18 → 2015-08-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. HYDROPAC 2727/152015-08-17 → 2015-08-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 2726/152015-08-17 → 2015-08-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. HYDROPAC 2714/152015-08-16 → 2015-08-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  18. HYDROPAC 2713/152015-08-16 → 2015-08-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. NAVAREA XII 281/152015-08-14 → 2015-08-19
    Hazardous operations
    Eastern North Pacific
  20. HYDROPAC 2685/152015-08-14 → 2015-08-19
    Hazardous operations
    North Pacific · Marshall Islands
  21. HYDROPAC 2684/152015-08-14 → 2015-08-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. HYDROPAC 2653/152015-08-13 → 2015-08-14
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. NAVAREA XII 269/152015-08-09 → 2015-08-17
    Hazardous operations
    Eastern North Pacific · California
  24. HYDROPAC 2610/152015-08-09 → 2015-08-13
    Hazardous operations
    Western North Pacific · Mariana Islands
  25. HYDROPAC 2580/152015-08-06 → 2015-08-10
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. HYDROPAC 2563/152015-08-05 → 2015-08-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  27. HYDROPAC 2559/152015-08-04 → 2015-08-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  28. HYDROPAC 2552/152015-08-03 → 2015-08-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  29. HYDROPAC 2540/152015-08-02 → 2015-08-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. HYDROPAC 2539/152015-08-02 → 2015-08-03
    Hazardous operations 030600Z to 031000Z aug in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Hazardous Operation
  31. NAVAREA XII 260/152015-07-31 → 2015-08-10
    Hazardous operations
    Eastern North Pacific · California
  32. HYDROPAC 2523/152015-07-31 → 2015-08-02
    Hazardous operations
    Western North Pacific · Mariana Islands
  33. HYDROPAC 2473/152015-07-28 → 2015-07-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  34. HYDROPAC 2459/152015-07-27 → 2015-08-31
    Gunnery exercises 2300Z to 0900Z commencing daily 31 jul thru 30 aug in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  35. HYDROPAC 2455/152015-07-27 → 2015-07-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  36. HYDROPAC 2449/152015-07-26 → 2015-07-27
    Hazardous operations 261400Z to 271355Z jul in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Hazardous Operation
  37. HYDROPAC 2448/152015-07-26 → 2015-07-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 2405/152015-07-23 → 2015-07-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. HYDROPAC 2392/152015-07-22 → 2015-07-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 2388/152015-07-21 → 2015-07-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  41. HYDROPAC 2375/152015-07-20 → 2015-07-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  42. HYDROPAC 2365/152015-07-19 → 2015-07-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  43. NAVAREA XII 240/152015-07-17 → 2015-07-19
    Gunnery exercises 181700Z to 182300Z jul within 20000 yards of 46-48N 139-20W
    Eastern North Pacific · Gunnery
  44. NAVAREA XII 235/152015-07-14 → 2015-07-15
    Gunnery exercises 151800Z to 152000Z jul within 20000 yards of 46-11N 159-56W
    Eastern North Pacific · Gunnery
  45. HYDROPAC 2307/152015-07-13 → 2015-07-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. NAVAREA XII 233/152015-07-12 → 2015-07-14
    Gunnery exercises 151800Z to 152000Z jul within five miles of 46-11N 159-56W
    Eastern North Pacific · Gunnery
  47. HYDROPAC 2298/152015-07-12 → 2015-07-15
    Hazardous operations 121800Z to 150830Z jul in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Hazardous Operation
  48. HYDROPAC 2286/152015-07-11 → 2015-07-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  49. HYDROPAC 2248/152015-07-08 → 2015-07-09
    Hazardous operations
    Western North Pacific · Mariana Islands
  50. NAVAREA XII 226/152015-07-02 → 2015-07-13
    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 53 · seahazards