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 1213/162016-04-26 → 2016-05-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 apr thru 30 may in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  2. HYDROPAC 1206/162016-04-25 → 2016-04-30
    Gunnery exercises 300400Z to 300700Z apr within ten miles of 29-55.0N 141-59.5E
    Western North Pacific · Gunnery
  3. HYDROPAC 1194/162016-04-24 → 2016-04-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  4. NAVAREA XII 115/162016-04-22 → 2016-05-01
    Hazardous operations
    Eastern North Pacific · California
  5. HYDROPAC 1129/162016-04-18 → 2016-04-20
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. NAVAREA XII 107/162016-04-14 → 2016-04-25
    Hazardous operations
    Eastern North Pacific · California
  7. NAVAREA XII 106/162016-04-12 → 2016-04-22
    Hazardous operations
    Eastern North Pacific · Mexico
  8. NAVAREA XII 105/162016-04-12 → 2016-04-22
    Hazardous operations
    Eastern North Pacific · Mexico
  9. HYDROPAC 1069/162016-04-11 → 2016-04-19
    Gunnery exercises 2200Z to 1500Z commencing daily 15 thru 18 apr within 25 miles of 31-14-14N 144-26-48E
    Western North Pacific · Gunnery
  10. HYDROPAC 1063/162016-04-10 → 2016-04-15
    Hazardous operations
    Western North Pacific · Mariana Islands
  11. NAVAREA XII 101/162016-04-08 → 2016-04-18
    Hazardous operations
    Eastern North Pacific · California
  12. HYDROPAC 1026/162016-04-07 → 2016-04-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  13. HYDROPAC 1011/162016-04-06 → 2016-04-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  14. HYDROPAC 994/162016-04-05 → 2016-04-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  15. NAVAREA XII 98/162016-04-05 → 2016-04-05
    Gunnery exercises 052000Z to 052100Z apr within ten miles of 31-32.1N 117-33.6W
    Eastern North Pacific · Mexico · Gunnery
  16. HYDROPAC 976/162016-04-03 → 2016-04-05
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. NAVAREA XII 96/162016-04-01 → 2016-04-11
    Hazardous operations
    Eastern North Pacific · California
  18. HYDROPAC 940/162016-03-31 → 2016-04-01
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. HYDROPAC 927/162016-03-30 → 2016-03-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  20. HYDROPAC 909/162016-03-29 → 2016-03-30
    Hazardous operations
    Western North Pacific · Mariana Islands
  21. HYDROPAC 897/162016-03-28 → 2016-03-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  22. HYDROPAC 896/162016-03-28 → 2016-03-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  23. NAVAREA XII 91/162016-03-28 → 2016-05-01
    Hazardous operations
    Eastern North Pacific · California
  24. HYDROPAC 887/162016-03-27 → 2016-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  25. HYDROPAC 880/162016-03-26 → 2016-03-28
    Hazardous operations
    Western North Pacific · Mariana Islands
  26. NAVAREA XII 87/162016-03-25 → 2016-04-04
    Hazardous operations
    Eastern North Pacific · California
  27. NAVAREA XII 85/162016-03-21 → 2016-03-28
    Hazardous operations
    Eastern North Pacific · California
  28. HYDROPAC 812/162016-03-20 → 2016-03-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  29. HYDROPAC 811/162016-03-20 → 2016-03-24
    Gunnery exercises 2200Z to 0830Z commencing daily 20 and 21 mar, 2200Z to 1355Z commencing daily 22 and 23…
    Western North Pacific · Mariana Islands · Gunnery
  30. HYDROPAC 756/162016-03-16 → 2016-03-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  31. HYDROPAC 755/162016-03-16 → 2016-03-17
    Hazardous operations
    Western North Pacific · Mariana Islands
  32. HYDROPAC 719/162016-03-13 → 2016-03-18
    Gunnery exercises 1400Z to 1355Z commencing daily 14 thru 17 mar in area bound by 13-10N 144-43E, 13-10N…
    Western North Pacific · Mariana Islands · Gunnery
  33. HYDROPAC 718/162016-03-13 → 2016-03-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  34. NAVAREA XII 74/162016-03-11 → 2016-03-21
    Hazardous operations
    Eastern North Pacific · California
  35. NAVAREA XII 69/162016-03-08 → 2016-03-22
    Hazardous operations
    Eastern North Pacific · Mexico
  36. NAVAREA XII 64/162016-03-07 → 2016-03-14
    Hazardous operations
    Eastern North Pacific · California
  37. HYDROPAC 644/162016-03-06 → 2016-03-11
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 597/162016-03-02 → 2016-03-13
    Gunnery exercises 021400Z to 131359Z mar in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  39. HYDROPAC 579/162016-03-01 → 2016-03-03
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 521/162016-02-25 → 2016-03-31
    Gunnery exercises 2300Z to 0900Z commencing daily 29 feb thru 30 mar in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nanpo Shoto · Gunnery
  41. NAVAREA XII 56/162016-02-25 → 2016-04-01
    Hazardous operations
    Eastern North Pacific · California
  42. HYDROPAC 506/162016-02-24 → 2016-02-25
    Gunnery exercises 250200Z to 251200Z feb in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  43. HYDROPAC 490/162016-02-22 → 2016-02-25
    Gunnery exercises 0200Z to 1000Z daily 23 thru 25 feb in area bound by 13-10N 144-43E, 13-10N 144-30E,…
    Western North Pacific · Mariana Islands · Gunnery
  44. HYDROPAC 487/162016-02-21 → 2016-02-27
    Hazardous operations
    North Pacific · Marshall Islands
  45. HYDROPAC 485/162016-02-21 → 2016-02-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. NAVAREA XII 50/162016-02-20 → 2016-02-25
    Hazardous operations
    Eastern North Pacific · California
  47. HYDROPAC 451/162016-02-17 → 2016-02-21
    Hazardous operations
    North Pacific · Marshall Islands
  48. NAVAREA XII 47/162016-02-16 → 2016-02-18
    Gunnery exercises 181900Z to 182200Z feb within five miles of 57-00N 136-27W
    Eastern North Pacific · Alaska · Gunnery
  49. HYDROPAC 429/162016-02-16 → 2016-02-17
    Hazardous operations
    North Pacific · Marshall Islands
  50. HYDROPAC 415/162016-02-14 → 2016-02-19
    Hazardous operations
    Western North 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 49 · seahazards