North Pacific Ocean

IHO sea area 57 · -180° to 180° E, 0° to 58° N

in force
28
last 12 months
57
since 1993
9,590
categories
15

In force now · 28

  1. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  2. NAVAREA XI 391/26 · Missiles2026-08-26
    Rocket firing occurs daily from 30 August to 2, 5, and 6 September and alternate 7-9 September within 25 miles of 31-14-14N 144-26-48E.
  3. NAVAREA XI 372/26 · Missiles2026-08-19
    Rocket firing is scheduled daily on August 23 and 29 from 2200Z to 1300Z within 25 miles of 31-14-14N 144-26-48E in the North Pacific near Nanpo Shoto.
  4. NAVAREA XII 540/26 · Missiles2026-08-10
    Space debris hazard operations occur daily from August 13 to 26 in two North Pacific areas.
  5. HYDROPAC 2282/26 · Cable ops2026-08-10
    Cable operations by cableship Aniek are in progress until further notice along a trackline in the North Pacific near coordinates 45-07.40N 163-31.90E to 38-48.00N 147-55.50E. Wide berth requested.
  6. NAVAREA XI 364/26 · Cable ops2026-08-10
    Submarine cable recovery works by motor vessel Aniek in northwestern North Pacific from 092200Z Aug until further notice near coordinates 45-07N 163-32E to 38-48N 147-56E.
  7. HYDROPAC 2152/26 · Exercises2026-07-27
    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.
  8. NAVAREA XI 342/26 · Exercises2026-07-27
    Gunnery exercise in North Pacific near Nanpo Shoto daily from 31 July to 30 August, 2300Z to 0900Z, in a bounded area.
  9. NAVAREA XII 512/26 · Exercises2026-07-23
    Hazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.
  10. NAVAREA XII 510/26 · Exercises2026-07-23
    Hazardous operations are underway off the coast of California from August 1 to September 1.
  11. NAVAREA XII 511/26 · Exercises2026-07-23
    Hazardous operations are occurring from August 1 to September 1 in the North Pacific off California.
  12. NAVAREA XI 328/26 · Nav aids2026-07-21
    The Number 1 lighted buoy at Malakal Harbor in the West Carolines, North Pacific, at 07-19.17N 134-27.17E, is missing.
  13. HYDROPAC 2039/26 · Volcanic2026-07-16
    Discolored water with increased likelihood of submarine volcanic activity is reported in Northern Mariana Islands vicinity at 20-26N 145-01E on July 16 at 0013Z.
  14. NAVAREA XI 322/26 · Volcanic2026-07-16
    Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.
  15. HYDROPAC 1906/26 · Nav aids2026-07-03
    The United States Coast Guard's remote communication facility at Guam (13-29N 144-50E) has unreliable broadcast and communication services.
  16. NAVAREA XII 678/25 · Other2025-10-30
    A fish farm has been established in an area off Colombia, from 06-03N to 07-11N and 077-28W to 078-08W; wide berth requested.
  17. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  18. HYDROPAC 1650/25 · Debris2025-06-24
    Vessel Morning Midas sank in North Pacific at 45-16.88N 179-14.13W; navigate with caution and report debris or oil sheens.
  19. NAVAREA XII 392/25 · Debris2025-06-24
    Motor vessel Morning Midas is reported to have sunk in the North Pacific at 45-16.88N 179-14.13W; vessels should report oil sheens or debris to USCG.
  20. NAVAREA XII 354/25 · Nav aids2025-06-13
    Messaging services are unreliable at Coast Guard remote communication facilities at Point Reyes, Honolulu, Kodiak, Astoria, and Cambria.
  21. NAVAREA XII 338/25 · Nav aids2025-06-07
    The US Coast Guard remote communication facility at Astoria, Oregon (46-10.00N 123-49.00W), is off the air.
  22. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  23. NAVAREA XII 862/24 · Cable ops2024-10-28
    Cable operations are in progress in the eastern North Pacific near Kiribati until further notice; a 100-meter berth is requested.
  24. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  25. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  26. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  27. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  28. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.

Longest in force

  1. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.
  2. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  3. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  4. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  5. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.

By year

93
96
98
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

By category · since 1997

Exercises4,62748%
Missiles1,74718%
Other8259%
Nav aids7558%
Towing5326%
Derelicts4775%
Cable ops2262%
Surveys1502%
Containers1131%
Debris811%
Wrecks380%
Volcanic130%
Mines40%
Piracy10%
Icebergs10%

Archive · 9,562 cancelled

  1. HYDROPAC 1115/17 · Exercises2017-03-30 → 2017-03-31
    Hazardous operations 310001Z to 310930Z mar in area within 12 miles of 16-01-06N 146-03-35E
  2. NAVAREA XII 138/17 · Exercises2017-03-29 → 2017-04-01
    Hazardous operations 312100Z mar to 010100Z apr in area bound by 34-13N 121-08W, 33-11N 120-26W, 32-49N…
  3. HYDROPAC 1103/17 · Exercises2017-03-29 → 2017-03-30
    Hazardous operations 300200Z to 301200Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  4. HYDROPAC 1102/17 · Exercises2017-03-29 → 2017-03-30
    Hazardous operations 300001Z to 300930Z mar in area within 12 miles of 16-01-06N 146-03-35E
  5. NAVAREA XII 137/17 · Other2017-03-27 → 2017-03-29
    Pyrotechnics exercises 282100Z to 290400Z in area within 2.5 miles of 55-05N 136-50W
  6. HYDROPAC 1088/17 · Exercises2017-03-27 → 2017-03-29
    Hazardous operations 290200Z to 291200Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  7. HYDROPAC 1087/17 · Exercises2017-03-27 → 2017-03-29
    Hazardous operations 290001Z to 290930Z mar in area within 12 miles of 16-01-06N 146-03-35E
  8. HYDROPAC 1077/17 · Exercises2017-03-27 → 2017-04-30
    Gunnery exercises 2300Z to 0900Z commencing daily 31 mar thru 29 apr in area bound by 27-55-15N 144-57-48E,…
  9. NAVAREA XII 135/17 · Missiles2017-03-27 → 2017-03-31
    Missile operations 311500Z to 311700Z mar in area bound by 29-55N 118-25W, 29-55N 116-11W, 30-55N 116-40W,…
  10. HYDROPAC 1069/17 · Exercises2017-03-27 → 2017-03-28
    Hazardous operations 280001Z to 280930Z mar in area within 12 miles of 16-01-06N 146-03-35E
  11. HYDROPAC 1068/17 · Exercises2017-03-27 → 2017-03-28
    Hazardous operations 280200Z to 281200Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  12. NAVAREA XII 134/17 · Exercises2017-03-24 → 2017-03-29
    Gunnery exercises 281600Z to 290400Z mar in area within five miles of 55-00N 137-00W
  13. HYDROPAC 1015/17 · Exercises2017-03-23 → 2017-03-30
    Gunnery exercises 272100Z to 280900Z mar, alternate 2100Z to 0900Z commencing daily 28 and 29 mar in area…
  14. HYDROPAC 994/17 · Exercises2017-03-22 → 2017-03-23
    Hazardous operations 230200Z to 231200Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  15. HYDROPAC 976/17 · Exercises2017-03-21 → 2017-03-22
    Hazardous operations 210200Z to 221200Z mar in area bound by 13-10N 144-30E, 13-10N 144-42E, 12-50N 144-45E,…
  16. HYDROPAC 970/17 · Icebergs2017-03-20 → 2017-03-21
    Iceberg reported in area bound by 42-46N 146-42E, 42-45N 146-50E, 42-48N 146-50E, 42-50N 146-46E
  17. NAVAREA XII 132/17 · Exercises2017-03-20 → 2017-03-24
    Hazardous operations 221300Z to 221800Z mar, alternate 231800Z to 232300Z mar in area bound by 34-17N…
  18. NAVAREA XII 131/17 · Exercises2017-03-20 → 2017-03-27
    Hazardous operations 1400Z to 0100Z commencing daily 21, 22 and 24 mar, alternate 1400Z to 0100Z commencing…
  19. HYDROPAC 950/17 · Exercises2017-03-19 → 2017-03-19
    Hazardous operations 191157Z to 191312Z mar, in area bound by 16-58N 153-50E, 13-38N 159-01E, 11-22N…
  20. HYDROPAC 949/17 · Exercises2017-03-18 → 2017-03-20
    Hazardous operations 200200Z to 200600Z mar in area within 12 miles of 16-01-06N 146-03-35E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.