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 3104/112011-11-03 → 2011-11-04
    Hazardous operations
    North Pacific · Mariana Islands
  2. HYDROPAC 3067/112011-10-31 → 2011-11-03
    Hazardous operations
    North Pacific · Mariana Islands
  3. HYDROPAC 3054/112011-10-30 → 2011-10-31
    Hazardous operations
    North Pacific · Mariana Islands
  4. HYDROPAC 3024/112011-10-27 → 2011-11-30
    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 · Gunnery
  5. HYDROPAC 2966/112011-10-21 → 2011-10-28
    Hazardous operations
    North Pacific · Mariana Islands
  6. HYDROPAC 2952/112011-10-20 → 2011-10-21
    Hazardous operations
    North Pacific · Mariana Islands
  7. HYDROPAC 2951/112011-10-20 → 2011-10-21
    Hazardous operations
    North Pacific · Mariana Islands
  8. HYDROPAC 2941/112011-10-19 → 2011-10-20
    Gunnery excercises 192200Z to 201359Z oct in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    North Pacific · Mariana Islands · Gunnery
  9. HYDROPAC 2940/112011-10-19 → 2011-10-20
    Hazardous operations
    North Pacific · Mariana Islands
  10. HYDROPAC 2916/112011-10-16 → 2011-10-21
    Hazardous operations
    North Pacific · Mariana Islands
  11. HYDROPAC 2875/112011-10-13 → 2011-10-14
    Gunnery exercises 132300Z to 140700Z oct in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    North Pacific · Mariana Islands · Gunnery
  12. HYDROPAC 2850/112011-10-11 → 2011-10-13
    Hazardous operations
    North Pacific · Mariana Islands
  13. HYDROPAC 2849/112011-10-11 → 2011-10-12
    Hazardous operations
    North Pacific · Mariana Islands
  14. HYDROPAC 2842/112011-10-10 → 2011-10-11
    Hazardous operations
    North Pacific · Mariana Islands
  15. HYDROPAC 2841/112011-10-10 → 2011-10-16
    Hazardous operations
    North Pacific · Mariana Islands
  16. HYDROPAC 2831/112011-10-10 → 2011-10-10
    Hazardous operations
    North Pacific · Mariana Islands
  17. HYDROPAC 2827/112011-10-09 → 2011-10-10
    Gunnery exercises 092300Z to 100700Z oct in area bound by 13-10N 144-43E, 13-10N 144-30E, 12-45N 144-30E,…
    North Pacific · Mariana Islands · Gunnery
  18. HYDROPAC 2797/112011-10-06 → 2011-10-08
    Hazardous operations
    North Pacific · Mariana Islands
  19. HYDROPAC 2793/112011-10-05 → 2011-10-07
    Hazardous operations
    North Pacific · Mariana Islands
  20. HYDROPAC 2780/112011-10-04 → 2011-10-05
    Hazardous operations
    North Pacific · Mariana Islands
  21. HYDROPAC 2771/112011-10-03 → 2011-10-05
    Hazardous operations
    Western North Pacific · Philippine Sea · Mariana Islands
  22. HYDROPAC 2709/112011-09-26 → 2011-10-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 sep thru 30 oct in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Gunnery
  23. NAVAREA XII 352/112011-09-23 → 2011-09-25
    Gunnery and pyrotechnics exercises 242100Z to 242200Z sep within five miles of 58-00N 137-11W, alternate…
    Eastern North Pacific · Gulf of Alaska · Gunnery
  24. HYDROPAC 2637/112011-09-20 → 2011-09-22
    Hazardous operations
    North Pacific · Mariana Islands
  25. HYDROPAC 2623/112011-09-18 → 2011-09-19
    Hazardous operations
    North Pacific · Mariana Islands
  26. NAVAREA XII 334/112011-09-09 → 2011-09-15
    Hazardous operations
    Eastern North Pacific · Mexico-southwest Coast
  27. NAVAREA XII 331/112011-09-06 → 2011-09-12
    Gunnery exercises 101800Z to 110001Z sep within five miles of 57-00N, 136-25W, alternate 111800Z to 120001Z…
    Gulf of Alaska · Gunnery
  28. HYDROPAC 2515/112011-09-06 → 2011-09-09
    Hazardous operations
    North Pacific · Mariana Islands
  29. HYDROPAC 2508/112011-09-05 → 2011-09-06
    Hazardous operations
    North Pacific · Mariana Islands
  30. HYDROPAC 2507/112011-09-05 → 2011-09-07
    Hazardous operations
    Western North Pacific · Philippine Sea · Mariana Islands
  31. HYDROPAC 2503/112011-09-05 → 2011-09-11
    Gunnery exercises 092100Z to 100900Z sep, alternate 102100Z to 110900Z sep within 25 miles of 31-14-14N…
    Western North Pacific · Nampo Shoto · Gunnery
  32. HYDROPAC 2454/112011-08-31 → 2011-09-01
    Hazardous operations
    North Pacific · Mariana Islands
  33. HYDROPAC 2437/112011-08-28 → 2011-08-30
    Farallon de medinilla
    North Pacific · Mariana Islands
  34. HYDROPAC 2425/112011-08-27 → 2011-09-30
    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 · Nampo Shoto · Gunnery
  35. HYDROPAC 2370/112011-08-23 → 2011-08-24
    Hazardous operations
    North Pacific · Mariana Islands
  36. HYDROPAC 2337/112011-08-19 → 2011-08-21
    Hazardous operations
    North Pacific · Mariana Islands
  37. HYDROPAC 2318/112011-08-18 → 2011-08-19
    Hazardous operations
    North Pacific · Mariana Islands
  38. HYDROPAC 2291/112011-08-16 → 2011-08-17
    Hazardous operations
    North Pacific · Mariana Islands
  39. NAVAREA XII 303/112011-08-15 → 2011-08-16
    Hazardous operations
    Eastern North Pacific
  40. HYDROPAC 2282/112011-08-14 → 2011-08-15
    Hazardous operations
    North Pacific · Mariana Islands
  41. HYDROPAC 2278/112011-08-14 → 2011-08-22
    Hazardous operations
    North Pacific
  42. NAVAREA XII 300/112011-08-14 → 2011-08-22
    Hazardous operations
    Eastern North Pacific
  43. HYDROPAC 2261/112011-08-12 → 2011-08-31
    Gunnery exercises 2300Z to 0900Z commencing daily until 30 aug in area bound by 27-55-15N 144-57-48E,…
    Western North Pacific · Nampo Shoto · Gunnery
  44. HYDROPAC 2231/112011-08-09 → 2011-08-10
    Hazardous operations
    Western North Pacific · Philippine Sea · Mariana Islands
  45. HYDROPAC 2172/112011-08-03 → 2011-08-04
    Hazardous operations
    Philippine Sea · Mariana Islands
  46. HYDROPAC 2161/112011-08-02 → 2011-08-03
    Hazardous operations
    Philippine Sea · Mariana Islands
  47. NAVAREA XII 286/112011-08-01 → 2011-08-03
    Gunnery exercises 021600Z to 030400Z aug within five miles of 40-15-00N 155-17-22W
    North Pacific · Gunnery
  48. HYDROPAC 2122/112011-07-28 → 2011-07-30
    Gunnery exercises 292000Z to 300800Z jul within five miles of: a. 48-29N 177-02E
    Western North Pacific · Gunnery
  49. NAVAREA XII 276/112011-07-23 → 2011-07-27
    Hazardous operations
    Eastern North Pacific
  50. HYDROPAC 2095/112011-07-23 → 2011-07-27
    Hazardous operations
    North Pacific

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 67 · seahazards