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. NAVAREA XII 164/152015-05-15 → 2015-05-22
    Hazardous operations
    Eastern North Pacific · California
  2. NAVAREA XII 162/152015-05-15 → 2015-05-20
    Hazardous operations
    Eastern North Pacific
  3. HYDROPAC 1603/152015-05-15 → 2015-05-18
    Hazardous operations
    North Pacific · Marshall Islands
  4. HYDROPAC 1548/152015-05-10 → 2015-05-12
    Hazardous operations
    Western North Pacific · Mariana Islands
  5. HYDROPAC 1509/152015-05-07 → 2015-05-08
    Hazardous operations
    Western North Pacific · Mariana Islands
  6. HYDROPAC 1493/152015-05-05 → 2015-05-07
    Hazardous operations
    Western North Pacific · Mariana Islands
  7. HYDROPAC 1486/152015-05-04 → 2015-05-06
    Hazardous operations
    Western North Pacific · Mariana Islands
  8. HYDROPAC 1481/152015-05-03 → 2015-05-04
    Hazardous operations
    Western North Pacific · Mariana Islands
  9. HYDROPAC 1445/152015-04-30 → 2015-05-01
    Hazardous operations
    Western North Pacific · Mariana Islands
  10. HYDROPAC 1404/152015-04-27 → 2015-04-30
    Gunnery exercises 300400Z to 300700Z apr within ten miles of 29-55.0N 141-59.5E
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  11. HYDROPAC 1401/152015-04-27 → 2015-04-29
    Hazardous operations
    Western North Pacific · Mariana Islands
  12. NAVAREA XII 147/152015-04-26 → 2015-04-27
    Hazardous operations
    Eastern North Pacific · Mexico
  13. HYDROPAC 1394/152015-04-26 → 2015-05-31
    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
  14. HYDROPAC 1389/152015-04-26 → 2015-04-26
    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
  15. HYDROPAC 1342/152015-04-22 → 2015-04-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  16. HYDROPAC 1331/152015-04-21 → 2015-04-22
    Hazardous operations
    Western North Pacific · Mariana Islands
  17. NAVAREA XII 145/152015-04-20 → 2015-04-27
    Hazardous operations
    Eastern North Pacific · California
  18. HYDROPAC 1316/152015-04-20 → 2015-04-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  19. NAVAREA XII 142/152015-04-18 → 2015-04-26
    Hazardous operations
    Eastern North Pacific · California
  20. NAVAREA XII 139/152015-04-15 → 2015-04-30
    Hazardous operations
    Eastern North Pacific · California
  21. HYDROPAC 1245/152015-04-14 → 2015-04-27
    Hazardous operations
    Western North Pacific · Nanpo Shoto
  22. NAVAREA XII 127/152015-04-10 → 2015-04-20
    Hazardous operations
    Eastern North Pacific · California
  23. HYDROPAC 1180/152015-04-08 → 2015-04-18
    Hazardous operations
    Kamchatka-southeast Coast
  24. NAVAREA XII 126/152015-04-07 → 2015-04-11
    Hazardous operations
    Eastern North Pacific · California
  25. NAVAREA XII 125/152015-04-07 → 2015-04-10
    Hazardous operations
    Eastern North Pacific · California
  26. NAVAREA XII 124/152015-04-06 → 2015-04-09
    Hazardous operations
    Eastern North Pacific · California
  27. HYDROPAC 1145/152015-04-02 → 2015-04-11
    Hazardous operations
    Kamchatka-southeast Coast
  28. NAVAREA XII 118/152015-03-30 → 2015-04-05
    Hazardous operations
    Eastern North Pacific · California
  29. HYDROPAC 1084/152015-03-30 → 2015-03-31
    Hazardous operations
    Western North Pacific · Mariana Islands
  30. HYDROPAC 1074/152015-03-29 → 2015-04-04
    Hazardous operations
    Kamchatka-southeast Coast
  31. NAVAREA XII 114/152015-03-29 → 2015-03-30
    Hazardous operations
    Eastern North Pacific · California
  32. HYDROPAC 1070/152015-03-28 → 2015-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 01 thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nampo Shoto · Gunnery
  33. NAVAREA XII 107/152015-03-27 → 2015-05-01
    Hazardous operations
    Eastern North Pacific · California
  34. HYDROPAC 1045/152015-03-26 → 2015-03-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  35. NAVAREA XII 105/152015-03-25 → 2015-03-31
    Hazardous operations
    Eastern North Pacific · California
  36. HYDROPAC 1024/152015-03-25 → 2015-03-26
    Hazardous operations
    Western North Pacific · Mariana Islands
  37. HYDROPAC 1015/152015-03-24 → 2015-03-25
    Hazardous operations
    Western North Pacific · Mariana Islands
  38. HYDROPAC 1002/152015-03-23 → 2015-03-27
    Hazardous operations
    Western North Pacific · Mariana Islands
  39. HYDROPAC 1001/152015-03-23 → 2015-03-24
    Hazardous operations
    Western North Pacific · Mariana Islands
  40. HYDROPAC 985/152015-03-22 → 2015-03-23
    Hazardous operations
    Western North Pacific · Mariana Islands
  41. NAVAREA XII 102/152015-03-21 → 2015-03-29
    Hazardous operations
    Eastern North Pacific · California
  42. HYDROPAC 951/152015-03-18 → 2015-04-01
    Hazardous operations
    Western North Pacific · Mariana Islands
  43. HYDROPAC 945/152015-03-18 → 2015-03-21
    Hazardous operations
    Western North Pacific · Mariana Islands
  44. HYDROPAC 935/152015-03-17 → 2015-03-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  45. HYDROPAC 934/152015-03-17 → 2015-03-18
    Hazardous operations
    Western North Pacific · Mariana Islands
  46. HYDROPAC 921/152015-03-16 → 2015-03-17
    Hazardous operations
    Western North Pacific · Guam
  47. HYDROPAC 907/152015-03-15 → 2015-03-16
    Hazardous operations
    Western North Pacific · Mariana Islands
  48. NAVAREA XII 93/152015-03-13 → 2015-03-23
    Hazardous operations
    Eastern North Pacific · California
  49. NAVAREA XII 92/152015-03-12 → 2015-03-27
    Hazardous operations
    Eastern North Pacific · California
  50. HYDROPAC 845/152015-03-11 → 2015-03-13
    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 55 · seahazards