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 1931/122012-07-08 → 2012-07-13
    Hazardous operations
    North Pacific · Mariana Islands
  2. HYDROPAC 1908/122012-07-05 → 2012-07-06
    Hazardous operations
    North Pacific · Mariana Islands
  3. HYDROPAC 1868/122012-07-01 → 2012-07-03
    Hazardous operations
    North Pacific · Mariana Islands
  4. HYDROPAC 1806/122012-06-26 → 2012-07-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 jun thru 30 jul in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  5. HYDROPAC 1784/122012-06-24 → 2012-06-29
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 1701/122012-06-17 → 2012-06-22
    Hazardous operations
    North Pacific · Mariana Islands
  7. HYDROPAC 1624/122012-06-10 → 2012-06-15
    Hazardous operations
    North Pacific · Mariana Islands
  8. HYDROPAC 1539/122012-06-02 → 2012-06-08
    Hazardous operations
    North Pacific · Mariana Islands
  9. HYDROPAC 1525/122012-06-01 → 2012-06-08
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 1483/122012-05-27 → 2012-05-31
    Hazardous operations
    North Pacific · Mariana Islands
  11. HYDROPAC 1482/122012-05-27 → 2012-06-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 may thru 29 jun in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Japan · Nampo Shoto · Gunnery
  12. HYDROPAC 1459/122012-05-25 → 2012-06-01
    Hazardous operations
    North Pacific · Mariana Islands
  13. HYDROPAC 1387/122012-05-17 → 2012-05-18
    Hazardous operations
    North Pacific · Mariana Islands
  14. HYDROPAC 1386/122012-05-16 → 2012-05-17
    Hazardous operations
    North Pacific · Mariana Islands
  15. HYDROPAC 1372/122012-05-16 → 2012-05-16
    Hazardous operations
    North Pacific · Mariana Islands
  16. HYDROPAC 1351/122012-05-13 → 2012-05-14
    Hazardous operations
    North Pacific · Mariana Islands
  17. HYDROPAC 1287/122012-05-07 → 2012-05-10
    Hazardous operations
    North Pacific · Mariana Islands
  18. NAVAREA XII 126/122012-05-05 → 2012-05-10
    Hazardous operations 100330Z to 100900Z may, alternate 110330Z to 110900Z and 120330Z to 120900Z may in area…
    North Pacific · Hawaii · Missles
  19. NAVAREA XII 124/122012-05-03 → 2012-05-04
    Gunnery exercises 041900Z to 042100Z may within five miles of 56-50N 136-20W
    Alaska-southeast Coast · Gunnery
  20. HYDROPAC 1231/122012-05-01 → 2012-05-02
    Hazardous operations
    North Pacific · Mariana Islands
  21. HYDROPAC 1230/122012-05-01 → 2012-05-02
    Hazardous operations
    North Pacific · Mariana Islands
  22. HYDROPAC 1223/122012-04-29 → 2012-04-30
    Hazardous operations
    North Pacific · Mariana Islands
  23. NAVAREA XII 114/122012-04-27 → 2012-04-28
    Hazardous operations
    Eastern North Pacific · California
  24. NAVAREA XII 113/122012-04-27 → 2012-05-02
    Hazardous operations 012330Z to 020500Z may, alternate 022330Z to 030500Z and 032330Z to 040500Z may in area…
    North Pacific · Hawaii · Missles
  25. HYDROPAC 1204/122012-04-26 → 2012-05-31
    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 · Japan · Nampo Shoto · Gunnery
  26. HYDROPAC 1093/122012-04-17 → 2012-04-19
    Hazardous operations
    North Pacific · Mariana Islands
  27. HYDROPAC 1047/122012-04-12 → 2012-04-13
    Hazardous operations
    North Pacific · Mariana Islands
  28. HYDROPAC 1045/122012-04-11 → 2012-04-12
    Hazardous operations
    North Pacific · Mariana Islands
  29. NAVAREA XII 106/122012-04-10 → 2012-04-11
    Hazardous operations
    Gulf of Alaska
  30. NAVAREA XII 101/122012-04-08 → 2012-04-10
    Hazardous operations
    Gulf of Alaska
  31. HYDROPAC 969/122012-04-05 → 2012-04-06
    Hazardous operations
    North Pacific
  32. HYDROPAC 967/122012-04-05 → 2011-04-06
    Hazardous operations
    North Pacific · Mariana Islands
  33. HYDROPAC 964/122012-04-05 → 2012-04-05
    Hazardous operations
    North Pacific
  34. NAVAREA XII 96/122012-04-05 → 2012-04-05
    Hazardous operations
    Eastern North Pacific
  35. HYDROPAC 955/122012-04-04 → 2012-04-05
    Hazardous operations
    North Pacific · Mariana Islands
  36. NAVAREA XII 91/122012-04-02 → 2012-04-04
    Hazardous operations
    Eastern North Pacific
  37. HYDROPAC 929/122012-04-01 → 2012-04-02
    Hazardous operations
    North Pacific · Mariana Islands
  38. NAVAREA XII 81/122012-03-29 → 2012-04-02
    Hazardous operations
    Eastern North Pacific
  39. HYDROPAC 879/122012-03-28 → 2012-04-30
    Gunnery excercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  40. HYDROPAC 872/122012-03-27 → 2012-03-31
    Hazardous operations
    North Pacific · Mariana Islands
  41. NAVAREA XII 76/122012-03-25 → 2012-03-29
    Hazardous operations
    Eastern North Pacific
  42. HYDROPAC 851/122012-03-24 → 2012-03-26
    Hazardous operations
    North Pacific · Mariana Islands
  43. HYDROPAC 850/122012-03-24 → 2012-03-24
    Hazardous operations
    North Pacific · Mariana Islands
  44. HYDROPAC 833/122012-03-23 → 2012-03-24
    Hazardous operations
    North Pacific · Mariana Islands
  45. HYDROPAC 786/122012-03-18 → 2012-03-20
    Hazardous operations
    North Pacific · Mariana Islands
  46. NAVAREA XII 61/122012-03-12 → 2012-03-16
    Hazardous operations
    Eastern North Pacific
  47. HYDROPAC 700/122012-03-11 → 2012-03-16
    Hazardous operations
    North Pacific · Mariana Islands
  48. HYDROPAC 685/122012-03-09 → 2012-03-11
    Hazardous operations
    North Pacific · Mariana Islands
  49. HYDROPAC 633/122012-03-04 → 2012-03-09
    Hazardous operations
    North Pacific · Mariana Islands
  50. HYDROPAC 597/122012-03-01 → 2012-03-01
    Hazardous operations
    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 65 · seahazards